Its kinda sad seeing so many people complaining that dude is faithful to his crush. Either people just troll, or there exist people retarded enough to think you need sex to make babies, like artificial insemination and stuff doesn't exist, like couples fucking on daily basis trying for kids take sometimes months or even years to get a kid, which often involve a lot of hormonal therapies and stuff, that can fucking with you so much, that when you finally get a git its like triplets (my cousin tried for a kid for like 2 years, they spruced her up with hormones and stuff that she would probably emit light in UV or something, ended up with triplets and a scary pregnancy with some complications).
So basically a lot of people here would smash first girl that told them she is willing even if they have a crush they pinned after for years and the only reason they aren't together is that she disappeared. Like screw looking for your crush, lets fuck anything that moves ;(
Putting that aside thou, the dude in the manga is kinda stupid. Imma fuck Rinka, but lemme watch your tits, after he already fapped a full cup of seed? Pure cow udders sized girls everywhere harem without any actual sex in sight slop. Will give it few more chapters, but for now it seems weak, like general porn mangas have more thought put into the world building and character/personalities of people than this one thus far.