So many are saying they wish the uke had found someone else and the seme's plan backfired but you guys forget why Kei decided to get with another guy in the first place. Naru was the one who brought another guy into their relationship first with that threesome. Kei wasn't feeling it but went along with it because he goes along with whatever Naru says. He wanted Naru to be his one and only. Naru needed to be taught a lesson and understand Kei's feelings as well. The story isn't that deep. It's mostly just smut.
So many are saying they wish the uke had found someone else and the seme's plan backfired but you guys forget why Kei decided to get with another guy in the first place. Naru was the one who brought another guy into their relationship first with that threesome. Kei wasn't feeling it but went along with it because he goes along with whatever Naru says. He wanted Naru to be his one and only. Naru needed to be taught a lesson and understand Kei's feelings as well. The story isn't that deep. It's mostly just smut.