I thought it would be a story about 3 ridiculous guards disguised as non guards, like a chef or gardener, protecting a little girl (it said young princess. I thought like a 5 year old!) But it being a parasite is pretty cool too. Subverts my expectations, but is also sad cause I wanted 3 muscular dudes...
Ive seen some tropes where one person is jealous that their lover loves someone and doesn't realize its them. But I really like that this one took it even further with how the seme doesnt realize he gave the hickey. Thats really high level misunderstanding seeing how the seme keeps forgetting their nightly sessions