The main character in 'Mc Jin Love Story' is likely Mc Jin himself. Since it's his love story, he would be the central figure around which the story revolves.
I'm not sure which specific 'Mc Jin Love Story' you are referring to. It could be a very personal or a less - known story. Maybe it's about his journey in love, his relationships, or some experiences related to love that are unique to him.
One great anime is 'Sword Art Online'. The main character, Kirito, is extremely overpowered (OP). He is highly skilled in the virtual reality world of SAO. In the series, he also has a love story with Asuna. Their relationship develops as they face various challenges together in the dangerous game world.
In Duskwood, Jake and MC's love story is really interesting. Jake is a rather enigmatic character. He and MC first connect while dealing with the strange happenings in Duskwood. Their relationship develops as they exchange information, console each other during tough times. The way they communicate, with a mix of caution and growing affection, makes their love story unique. It's a story of two people from different backgrounds coming together in the face of mystery and danger.
One good anime is 'Sword Art Online'. The main character, Kirito, is extremely overpowered. He's highly skilled in combat within the virtual world of SAO. And there's a love story between him and Asuna. Their relationship develops as they face various challenges in the game world.
Well, 'Toradora!' has a unique love story along with an OP - ish MC in a sense. Ryuuji Takasu may not be the typical OP in terms of superpowers, but he is very capable in his own way. His love story with Taiga Aisaka is full of twists and turns. They start off as helping each other in their respective love interests which are actually each other in the end. It's a really cute and complex love story.
A very popular one is 'One Piece'. Luffy is the OP MC. While the love story aspect isn't as central as in some other anime, his relationship with Boa Hancock has elements of a love story. Hancock is in love with Luffy and it adds an interesting dynamic to the story, especially considering Luffy's rather oblivious nature to her feelings.
One key moment is when they first truly open up to each other about their fears regarding the events in Duskwood. Another is when Jake risks his own safety to protect MC during a dangerous encounter. Also, the times when they exchange heartfelt messages that show their deepening connection are important moments in their love story.
One can consider 'A Wrinkle in Time' where Meg is the main character. It's a science - fiction adventure that involves traveling through different dimensions to save her father. And 'The Little Prince' has the Little Prince as the main character, and it's a beautiful and philosophical story about love, friendship, and the meaning of life.