Man, the fact this is even tagged as rom-com irks me. The "comedy" is 90% of the time pure cringe and the other 10% just random shit that may or may not give you a chuckle. The romance is even worse. The fact the author tried to make write this as a romance is honestly just horrible and makes me think he has next to zero interactions with people in general.
And yet, hah, this trash is getting an anime adaption. Seriously, this is by far a better-written drama and story in general. https://www.novelupdates.com/series/hikaru-ga-chikyuu-ni-itakoro/