Tension! Hate ℁ Love rivalry Opposites attract

#eternal rivals, frenemy
#hate to love
story no.1: p.1-82. rivals when high school and now still rivals at work (and love too). he hated that guy's guts but actually, there's something beyond it that that suzuki refuse to acknowledge. a nice story with some funny moments

#opposites
ch. 3 two writers with opposite opinions about love and sex met and made a bet.

school's top placer rivalry
hate to love
ch.6: he's sooooo pissed at that guy who always cockblocks him from getting that coveted top place school ranking even when he studied so hard. smut in the end. very cute.
tension: ★☆☆

#work contest
funny manga. two doctors competing for the sake of their asses. reached a mutual understanding but their orientation(position) in bed got in the way. used sex for contest. reversible couple

it's kinda weird to have a rivalry with this age gap and being teacher and student but it's about a 'game' (involving sex) started bet. the both of them. bonus points for a manly uke. he look so handsome. coupled with a bully seme

#work rivalry
ch.7: two competing (not really, lol!) salarymen and then came the company outing. the other guy really needs to clear it up. i like the supportive boss btw.

love rivals to lovers
semexseme. not only that, the whole manga is filled with them having sex separately (and competing for) with different uke and then the final verdict of one of them succumbing out to the other. In all actuality, the younger one is having a secret unrequited love to his 'rival'

academic rivals love/hate
sexual tension ★★☆
p.164-201: two students competing for the top ranks. they are such kids to keep each other near by pissing off the other. despite it, they are still good rivals for each other and i wish to see more of these kids.

rivalry love
the pinnacle of sexual tension manga.
the kings of denial. tension is high between two frienemies, so high that they frequently find each other in bed when morning comes, lol. never got sick re-reading thing since 2008, gosh.
#super in-denial bi guys you might not like

#romeo/juliet - enemy clans
the only way to take advantage of an excellent hunter from the rival clan is to seduce and manipulate him so yuuen had to pretend to be a woman. but it's him who fell instead.