It's more fun to watch paint dry. Truly glacial pace.
What's worse, the entire manga is unsympathetic characters interacting in ridiculous, over-the-top, absolutely artificial ways.
Who the hell speaks like this? MMC spends literally whole CHAPTERS to convince FMC to go to the pool once, repeating "I just want you to rest" like a goddamn parrot - and then that epic endeavour is resolved by her oversleeping once!
Who the hell thinks like this? "I want to be independent from my family asap, but I can't find a high-paying job that requires no qualifications, so stepbro, how about you start fucking me for money (to ensure my independence from the family and help me acquire marketable skills, apparently)". The stepbro reacts to this kind of an offer with all the energy of a dead fish, and reflects on it the entirety of not at all.
What the hell is with author's pontificating? "Assuming a teenage boy has no experience washing female underwear is the kind of gender stereotyping that can lead to serious discrimination!"
What the hell even is this cringefest?