Michaellll
Maybe im too bitter but this is why I dont like when MCs know how to revive others. Who else is he gonna revive? When will it stop?
I already wrote part of next chapter, it will be explained there. It's not like he can reincarnate 10 people at once. There is a period where his own being has to stabilize before he can reincarnate another one. Mikoto was needed to mend the relationship between the two. Also, the Jutsu CAN'T be improved and people can only be reincarnated once which will be said next chapter