When I Was Hanging Out with Net King

I want a younger brother named Echizen Ryoma; I want a brother named Yushi Ninzu; I want a neighbor named Fuji Shusuke; I want a deskmate named Houchotaro; I want to raise two cats, one named Kikumaru Eiji and one named Mugahigatake; I want a group of buddies, all called Prince of Tennis; I also want a boyfriend... Well, who should I choose? This article takes the animation route, but for the plot that everyone is already familiar with, the author will still skip without mercy. Note: In view of the author's work, study, exams, entertainment, love, laziness and other comprehensive factors, you should not have too much hope in the update speed of this article. Just pray that this article is not a trap.