On the way home from the convenience store, he suddenly finds himself transported into another world. He has the ability that he calls "Return by Death" to go back in time when he dies, with only himself being aware of the reversal of time. Despite being a hikikomori and gamer in his real world, Subaru does a bit of workout and seems to know basic hand-to-hand combat, making him not completely weak. While Subaru tends to not read the situation, he is loyal to those he holds dear, willing to help them, even if that means taking the thorny path. He has his resolve confirmed through the many situations and circumstances he faces in the fantasy world, originally having been one to always take the "easy" route. As a hikikomori, he is hopeful of the possibilities that being sucked into a new realm brings, but later realizes the realities of the predicament he is in. Ultimately, he resolves himself to be faithful and protective of the ones that he cares most about. (Source: Re:Zero Wiki)

Alisa is a beautiful and talented first-year student who is popular for her looks and cold attitude. She was born to a Russian father and a Japanese mother. She occasionally makes remarks in Russian, which confuse her teacher and her classmates. Though she is popular and attracts the attention of many boys and girls at school, because of her cold demeanour, Alisa doesn't have many friends and isn't very experienced at social interaction, though that slowly changes the more she spends time with her classmate Masachika. She disapproves of Masachika's lack of motivation, but at the same time, she seems to be in love with him, and constantly flirts with him in Russian. She is Maria's younger sister. She spent part of her life in Vladivostok, where she had difficulties making friends. She is the Student Council Treasurer, and is running for the next Student Council as the proposed President, with Masachika being the Vice-President. Her cold attitude could be rooted to her experiences in Vladivostok. One time, when she was doing a project work with her groupmates, she realised that her groupmates were too lazy to start working early. Her groupmates, however, then quarrelled with Alisa since she was working too hard. The project work later came as a failure, so she decided to work hard on her own and avoid working with others, leading to her cold attitude. She likes to eat sweet food, and is afraid of eating spicy food. (Source: Wikipedia)