I'm going to be forced into marriage for world peace!

Hero Shota, who was summoned to another world, set out on a journey to rescue a kidnapped princess. That part went fine, but... what was waiting for him was a bull-like demon tribe member with a bright red face. "Marry me or I'll start a war." Wait, what are you talking about? Shota, the unfortunate protagonist from the previous work "Harem Banzai!", becomes even more unfortunate with a power-up! ※Please note that the protagonist (♂) is one-sidedly loved by a demon tribe member (♂), so please be careful if that's not your preference.