[MC]
He is bad at giving a name, same with me. MC is a normal human who is an otaku. Play some gacha games, watch hentai. His number one enemy is Grass. His face is average, but it's enough to make any girl fall in love with him at a glance.
Despite all of this, he doesn't get a girlfriend. Why? His awkwardness. He is always awkward around people to the point they see him as nothing.
Only Jake knows the reason because MC, it is because MC never interacts with other people beside Jake. MC has 0 social skills. Even a criminal will not rob him due to his awkwardness. They want to rob him, but in their mind, it is a waste of time robbing him even though MC is rich.
The fate of life is kinda fucked for MC. His friend Jake has many friends, he doesn't. Jake for a girlfriend, he doesn't. Jake manages to date a random girl for a week before breaking up, MC just takes a few minutes the girl already knows him as nothing.
MC life finally will change after Jake kills him by throwing MC into the moving truck-kun.
[Jake]
MC's best friend, MC sees him as a brother. Jake is the opposite of MC, because of his personality many people like him. He even gets confessed by many girls while MC doesn't.
He pities MC since MC's chances to live happily are 0%. So he and his friend make a meeting and decide to kill him so MC will get transferred to another world where he can finally live the happy life that MC should get.
Jake is one of the important people that help MC isekai'd to another world. He has faith in MC that MC will get a lover to show happiness in MC's life.
Jake's background is very mysterious, he is the one that names MC as 'MC'. Yes, he is bad at naming someone like MC.
(System)
The system is a system of isekai'd people like MC. The system will help MC and guide him to kill the protagonist of the books MC isekai'd into. The reason is unknown why the system tasked MC to kill the protagonist.
Can erase MC from existence. Only MC he can erase, other than MC is forbidden.
[Hiana]
???