#Misunderstanding/s

In the world of a popular rom-com manga, my only mission as the friend of the MC is to make the losing heroine, Sei-chan, happy!
"I'll definitely make you happy. Please go out with me."
"W-Wait, what!? Y-You're being serious...!?"
The manga adaptation of the sweet rom-com from Kakuyomu starts now!

Lindel is the youngest vice commander of the Imperial guards who had everything but love.
I made one wrong wish and started vomiting blood.
It was just an aftereffect of the contract. But the problem was that other people saw me vomiting blood.
I tried to fix things up but for some reason, it gets worse and worse.
Now I was a lover of the century who wished to protect the Emperor even at the risk of death.
“How long have you endured this alone?”
“Don’t worry, I’m okay.”
“I’d rather you cry! Beg to live, be angry!”
“…..Don’t die, please.”
No, I’m not going to die!

Yukino Suzushiro is a freshman who belongs to the Shakuyaku 'peasant' girls division at the class-based, segregation-enforcing Douwa All-Girls High School. After the entrance ceremony, she enters a greenhouse where she finds a gorgeous sleeping girl, Nobara Himezaki, who belongs to the Botan 'rich' girls school division. After Nobara bravely fends off a pervert intruder, Yukino doesn't meet Nobara again until the dorm room partners are shuffled, and she ends up being the only Shakuyaku girl in a Botan floor, with a Botan roomie… Nobara herself.
Though starkly different, as Yukino is very dutiful and friendly, while Nobara is eccentric and quiet, the two girls find themselves becoming increasingly close to one another.