Sanekana smut book

Omg I love sanekana like so much their just the best including obamitsu this is reincarnation au ig maybe some parts are different but ya kny academy I've never seen sanekaza smut like anywhere so I've decided I'm gonna take a risk and do it bc I know people hate it when someone writes smut abt a cute ship but like if u don't like smut simply don't read this😀 anyways just heads up there will me ofc smut, lemon,fluff,cringe,14+