Although Kasugano Sora said she had walked so much and felt very tired and sore, and never wanted to go out with Eriri again, she had specifically brought back tasty treats for Hoshino Miru to try.
Hoshino Miru felt this little sister was usually somewhat mischievous, but at crucial moments still showed a bit of filial piety.
Kasugano Sora fed Hoshino Miru while constantly complaining about how Eriri had tormented her on the road, believing that next time she should be the one to spank Eriri's bottom.
After finishing the food, Hoshino Miru brought his guitar back to his room, with her following behind like a little tail.
As soon as the two entered the room, Kasugano Sora unceremoniously flopped onto Hoshino Miru's bed, grabbing a pillow to hold in her arms.
Hoshino Miru turned a blind eye to her actions, put away the guitar properly, and took out his previous books and notes on music theory.
What should have been thoroughly familiar content suddenly gained new understanding after flipping through it for a while.
Before, it was merely mastering this skill, equivalent to just knowing how to use tools. Now he was starting to truly understand the underlying principles—how to create tools.
Reviewing the old to learn the new—this allows one to be a teacher.
If he could continue advancing one more level, Hoshino Miru felt he should be able to catch up to Toyokawa Shoko. At「Music Theory LV4」he could surpass Toyokawa Shoko.
After all, Hoshino Miru's「Writing LV3」had already helped him become an emerging writer. Continuing to work hard would make him a famous writer, the kind with phenomenal works.
Based on the current situation, Hoshino Miru estimated that LV5 or LV6 was the endpoint for skills, and probably also the highest level achievable by all humanity.
Precisely because of this, his mood was very good right now.
"The last time I saw Onii-chan this focused was when you were writing your novel." Kasugano Sora lay on the bed, turning on her side to stare at Hoshino Miru's face, a strand of hair falling beside her cheek. "Does this also make Onii-chan very happy?"
"Because it's fresh, and also has a full sense of accomplishment." Hoshino Miru put the notes back. Actually, he had always wanted to raise a certain skill to the highest level to see what kind of effect it would have.
"I feel like you're being evasive." Kasugano Sora was somewhat suspicious. "Besides that girl from last time, have you met other girls again?"
"Can't I just do something proper?" Hoshino Miru's mouth twitched. "Don't think of your brother as someone whose mind is full of women."
"What proper business—first learning guitar, then wanting to watch band performances." Kasugano Sora puffed out her cheeks. "Onii-chan, I really suspect you're planning to start a band."
"Wait, why would I start a band?" Hoshino Miru was stunned.
"Because that way, Onii-chan could use the excuse of starting a band to form one with girls, then unscrupulously open a harem."
Kasugano Sora looked like she had already seen through Hoshino Miru, because she herself had played similar games—dating the drummer one moment, flirting with the bassist the next, gazing deeply at the lead vocalist...
"Your imagination is too rich." Hoshino Miru looked away. "If I were to open a harem, the first thing I'd do is take care of you and Eriri."
"I knew you were still thinking about this—shameless!" Kasugano Sora blushed a bit. She didn't like Eriri, so why did he always want to press both her and Eriri onto the bed together?
Immediately after, Kasugano Sora buried half her face in the pillow, only revealing a pair of eyes looking at Hoshino Miru, appearing somewhat shy.
"Actually, you don't need to think about Eriri. If you can't hold back, Onii-chan can make a move on me anytime..." Halfway through, Kasugano Sora felt very shy and buried her entire face in the pillow. "No matter what Onii-chan wants to do, I can satisfy you."
Her voice was hidden under the pillow, sounding muffled, though her entire body was slightly squirming. Her pair of jade legs wrapped in white over-knee socks seemed somewhat pressed together. Between her skirt hem, a large expanse of fair, smooth thigh skin was exposed—the so-called absolute territory was thus revealed before Hoshino Miru's eyes.
Hoshino Miru began having wild thoughts, because he thought of the bad things he had done to Mikazuki Fuka in the library today.
If Kasugano Sora knew about this, what kind of reaction would she have?
"If I do it, can I still do it with Eriri too?"
Instantly, Kasugano Sora sat up, still holding the pillow, looking at Hoshino Miru with disbelief in her eyes.
How could this stinky brother have the nerve to ask a girl such a question?
"Do you think that's okay?" Kasugano Sora felt Hoshino Miru had a death wish. Her tone was particularly unfriendly.
"I really like you, Sora." Hoshino Miru kept a straight face. "Like you so much that even if I'm together with Eriri, I'll still have an affair with you, and preferably get you pregnant too."
Kasugano Sora was utterly shocked. She couldn't even care about blushing anymore.
"But I also like Eriri and don't want to miss her." Hoshino Miru continued, "If I'm together with you, I'll also have an affair with Eriri without hesitation."
"Wh-what are you even saying!" Kasugano Sora's face turned completely red. How could he so righteously shout about having affairs!
"I don't want to hide it from you. This is the extent of my feelings for both of you—I like you so much I don't want to miss either of you." Hoshino Miru spread his hands. "Though I also don't want to have affairs or cheat."
Kasugano Sora was very confused right now. This was the first time she'd heard someone frame cheating as liking someone.
"You just want to open a harem, don't you?" After a brief period of confusion, the girl felt she'd grasped the key point.
"If possible, I also hope we can be together openly and honestly." Hoshino Miru didn't deny this, but smiled instead. "I like you, Eriri also likes you. Why can't we stay together forever?"
Kasugano Sora felt like they were returning to last time's topic. She couldn't out-argue Hoshino Miru and felt like sulking.
Actually, she wasn't completely opposed to Hoshino Miru wanting to open a harem. But every girl wanted to monopolize the person they liked. She hated having someone clinging to Hoshino Miru just like her.
"It won't work, it's impossible." Kasugano Sora stood up. She stuffed the pillow into Hoshino Miru's hands. "Because Onii-chan will eventually be unable to resist."
Hoshino Miru paused. The girl leaned over and lightly kissed him.
"Before Eriri agrees, Onii-chan will definitely be unable to resist taking me." Kasugano Sora's voice was like a succubus's whisper. However, Hoshino Miru could see her pretty face was very red. "This is little sister's hypnosis technique for you. It can only be broken by little sister."
Hoshino Miru knew what hypnosis technique she was talking about—his body's physiological reaction was the best proof.
Before Hoshino Miru could speak, Kasugano Sora stuffed the pillow into his hands, then hurriedly ran out of his room.
Hoshino Miru took a deep breath. This hypnosis technique was indeed somewhat difficult to break. It wasn't impossible that one day he'd be unable to resist pressing Kasugano Sora onto the bed.
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