Someone here has less a problem with the relationship as such than with it supposedly having an expiration date.

I read through the first 7 books of the webnovel now, and I have to say - jeez - Miyagi has to be the most dense character I ever encountered.

Sendai keeps wanting to french kiss me, while we embrace naked in bed. I wonder why she'd want to do this? It's not like she actually likes me or anything...

Not a criticism. I actually do like the more unique character this gives her, and the slow-burn romance resulting from it (or else I wouldn't have kept reading).

(Manga reader only, for now)
Wait, Miyagi is the dense one? After this chapter I would expect it to be the other way.

Miyagi hides behind the transactional nature of the relationship. She's quite daring right now because she feels like she has the authority to give orders, and wants to see how much Sendai will let her get away with. But she feels like that will all go away eventually, that Sendai is only there because of the money. Miyagi would find it a lot harder to ask Sendai for something without giving an order.

Summer break chapters are gonna go so hard. I regret ever saying I thought the art style didn't suit this.

Sendai got slowly assimilated by Miyagi.

Somehow it manages to be slow even when actively on fire.

Best way to describe it