Just started reading the three idiots isekai.

>Scifi Otaku reborn as Marquis’ son.
>Studied magic and became strong but made sure to not make waves with his older brothers so not to deal with inheritance issues
>Second one furry otaku reborn in small rural village
>Old beastman adventurer moved into village
>Learned that beastman are all about strength so trained hard to create a fluffy beastman paradise
>Last one, yuri idiot so of course chose to be reborn as a girl
>Big Merchant family
>Introduces the usual soap -> beauty product pipeline
>Gets to associate with lots of noble ladies as a result
>They turn 15 and all head to the capital to meet up and become adventurers together
>Mage guy is waiting around not sure at all who to talk to
>Sees the other guy and takes a gamble and uses the passphrase
>Merchant girl butts in to the conversation
>She’d been there all day but wasn’t going to be the one to say that embarrassing passphrase so she waited to hear someone say it
>They go back to merchant girl’s mansion and all get wasted

Story brought up chantless magic and that no one learns it. Not because it’s difficult but because it causes problems. Like one wizard blew up half a town while sleeping. No one is sure what he was dreaming about. Well still only 8 chapters in but amusing start so far.

https://kakuyomu.jp/works/16817330666349892373