Crossover Anime: This is not pure love at all

Crossover anime + righteous male protagonist + solitary rock + Oregairu + Saekano: Where the Heroine Was There...
Kuroe took a deep breath and quickly came to terms with reality.
He crossed.
The good news is that he is still wearing the clothes and his body is still his; he hasn't possessed anyone else.
[Ding! Congratulations, host, you have bound yourself to the Justice Messenger System!]
The core principle of the system is: Reject evil, starting with you and me!
[As long as the host does anything that aligns with justice and stops evil, they will receive rewards and justice points!]
Justice Points can be used for lotteries or to redeem various powerful items.
New player rewards are now being distributed:
[Kamen Rider 555 (Faiz) Transformation System x1 (includes SB-555P transformation phone, SB-555B transformation belt, Auto Maru motorcycle, and a full set of exclusive weapons, already stored in system space).]
[10 free attribute points.]
[Host, please do not betray the system's mission, and strive to become a warrior who upholds justice!]
Upon hearing this long string of system dialogue, Kuroe Minoru was slightly taken aback.
"Justice...isn't that just a given?"