Manga with a MC like Cid Kagenoh but in his school days?

[ethics]

i've been thinking for a while that a manga with a mc like cid kagenoh (from eminence in the shadows) but in his schools days would be awesome and extremely funny. brainless, doesn't want to stand out (but ends up) and really op. does a manga like this exists? at least a little close from that, i really need one.