PlotLikeMyGravyThickens's manga / #Parallel world(1)

1st story: Amatatsu is rivals with Sen, a popular guy in school. When he gets hit on the head with a baseball, he wakes up in a parallel universe where he and Sen are lovers! Absolutely love this story! 2nd story: voice fetish 3rd story: MC tells friend he is willing to be his wingman to help him get a girlfriend only to realize his own feeling for him! 4th story: wrestler body type fetish