Oliver wasn't concerned about the demon seed he'd swallowed.
With his ability, he could easily block its movement without the demon's knowledge.
And if, by chance, the demon seed latched onto his body, attempting to take him over, he could simply discard his physical form.
Killing himself was also an option.
While his blood control ability typically prevented him from dying or even self-harm, he could use some mana to do the trick if he truly wished.
All it would take was concentrating and detonating a lump of golden mana in his brain.
BOOM!
He would die. Then, he could revive far away somewhere, where he had dropped his blood.
'Now that I think about it, the golden mana is really useful,' he silently thought as the lump of flesh, the demon seed, fell into his stomach.
With the ability to use mana, many new paths had opened up before him.
If it were in the past, he wouldn't have been able to kill himself.
