Mazu Wa Ubaiai!
Complete | sasamura gou | 2000 released
Tbh I liked it , cuz I appreciate at least author made seme x seme or switch couple story way back in 2010 , but white hair guy always loses cuz he likes him but tht black hair seems to be full of pride and ought to take bet on everything it's turn off for me at some point but still its good art is beautiful so I won't complain much .
Koi ga Bokura wo Yurusu Hani