So I started watching this on the strength of some recommendations that compared it to BAKUMAN.
Perhaps because I came to this series with a different expectation from most of the reviewers who gave this show a high rating, I really did not like the show. The relationships portrayed are unrealistic to say the least, and there is no lot to speak of, unlike NANA where the characters interact in a flawed but sympathetic way, Sekaiichi shows a collection of guys who seemingly have no concept of sexual harassment and with each kiss border on sexual assault. This is the characteristic of the seme (the
'top' in each pairing). The uke (the 'bottom') is clueless beyond belief, every single one of them, without exception. For that reason, it becomes very hard to differentiate between the characters' personalities.
This has been my first foray into Yaoi, and if MAL is to be trusted, this is the most beloved entry of the genre, so I'm doubly disappointed by this mediocre work.