This is my 4/10 mangaupdates review for the manga. The anime adapts most of it and goes of script towards the end while skipping some of the trashier parts so you can add 1/10 if you want or not: The 4-koma format puts a narrative and the comedic timing into way too artificial borders so it shouldn't be uses in a long form tale but this series fails as is it represents 9 full volumes of warmed up nothing. The leads are all just boring tropes as they include a tsundere protagonist, the clumsy but lucky love interest who constantly catches the lead in various stages of undress, the sheltered rich girl as a "rival" (who is even in love with her perfect brother), the cooler sibling and... Yamada further constantly monologues how she wants to have sex with at least a 100 boys, can't stop to masturbating at school and so on but then can't even get the one guy into her panties who is heads over heels for her for nearly 3 full years. I can only repeat that it takes the main couple, who are the only characters who get a plot, the entirety of their high school career to actually do something and the manga just ends with a graduation thereafter. What sort of sex focused rom-com would pull such a stunt and all the jokes present are the same ones you will find in all the other equally lame siblings. Look this series may be better than the author's previous trashy hentai but if this can't work as a comedy, romance or a porno then why down it exist again? The award winning and also animated Ping Pong Club (7,5/10), the satirical Jigokuren (8/10) and the out of control The Penisman by Sui "Tokyo Ghoul" Ishida (8/10) all prove that Japanese sex comedies have no excuses to suck or put you to sleep and if you want to read a highly explicit romance that cares to tell a story thicker then the paper it is printed on then go for Natsu no Zenjitsu (9/10), a 17+ comic by Image or Yanagida-kun to Mizuno-san (6/10) which is a "real" tsundere porno. The last one may suffer from the usual hentai problems but it accomplishes WAY more in 1/4 of the page count and i lastly gave up on Yoko's new 4-koma ecchi comedy (how original) after barely 2 chapters.