Ventus889
Like the idea of gamer powers in the fate stay night world but with the choices for who to go to like picking shriou, rin or kotomine I go for the third option cause here is the idea the he is more dangerous to learn from but will give more benefits with power gain with risk of course but since the mc's ability is weaker then the original holder of this power she'll have to compensate for it and the whole story around picking kotomine would be scary and interesting just saying I'll still read this though