Shinichiro Nakagami is an everyday high school student, with the exception of having his beautiful and athletic childhood friend Hiromi Yuasa living in his household after the death of her parents. Unfortunately, their relationship is cold at best - Shinichiro can tell that she is suffering, but she acts coldly and distant from her foster family and so he is unable to help ease her sadness. His family is also forcing him to practice a traditional Japanese dance that does not interest him, adding to his frustration. On top of that, he is cursed to misfortune by another girl in school, the eccentric Noe Isurugi. Shinichiro juggles all of these problems on a day-to-day basis as he learns about love and the sadness of those around him.
In the present, the Japanese government has been conducting experiments to genetically engineer a human: a girl named Rizel. The experiment was a success -- sort of. While healthy and cheerful, 12-year-old Rizel also ended up possessing the uncanny need for “love” to further her development, as well as tears which were in fact volitile explosives! When sadness can end up destroying a city block, what's a girl to do except... get married?! For Iwari Tomori, the young man chosen as the most appropriate partner for Rizel, life is about to change, for better or for worse!
Both Rizelmine and True Tears are beautifully rendered anime with a similar emotional appeal.
True Tears is mostly serious, while Rizelmine is a comedy. The lead character in True Tears cannot make up his mind, while the lead in Rizelmine wants what he can't have. The theme and plot differ in many respects.
With that in mind, they are both love stories that are incredibly potent. If this is what you are looking for, both of them deliver.
When Makoto saw Kotonoha on the train one day, he fell in love at first sight. Luckily, his classmate Sekai’s nosy personality ensures him an introduction to his crush, and soon the two begin to date. However, Kotonoha isn’t the only one with eyes for Makoto - a fact that any horny teenager would be delighted with. With endless temptations, lies and heartbreak at every turn, Makoto and Kotonoha’s relationship will soon be put to the ultimate test...
Schoool Days* and True Tears are similiar in many ways, sharing love triagle, drama, jealousy, school life and harem themes. I sincerely recommend watching both series because of the similar plots and atmospheres, I believe that, if you enjoyed one of them then there's a good chance you'll enjoy the other one.
Also, if you're into eroge, I recommend you to play the School Days eroge visual novel available with english translation (18+).
*Please note that the School Days anime contains mature themes and therefore may not be suited for everyone.
Morimiya Yorito is a normal student who has an abnormal obsession for the sky. One day, he meets a strange girl named Shihou Matsuri who shares his interest, but as fate may have it, she isn't a human; Matsuri is a Yaka -- a "woe of the night" -- who is immortal and cannot stand the sunlight. A strange man is chasing Matsuri, to use her powers, so Yorito decides to help her hide. What are the strange man's plans, and what secrets does Yorito's sister hide?
True Tears offers a less fantasy-based storyline as sola, whilst providing a protagonist engaged in a love triangle and a setting where many lies have obscured the truth. Both can bring a tear to the eye and a smile on your dial, and along with the overlapping themes of romance, school life and and drama each anime complements the other.
Yamato Akitsuki has recently moved to Tokyo, and in order to maintain his less than wealthy lifestyle, he currently works at his aunt's bathhouse. While walking by the school one evening he sees a girl by the name of Suzuka practicing the high jump, and is instantly in love. Even better is the realization that Suzuka lives next door! Determined to prove himself worthy of her affections, Yamato decides to join the school's track team and show her what he’s got, but things won’t be so easy; for Suzuka has a love interest of her own, and it isn’t Yamato...
Handsome but ordinary boy stuck between two girls. While one of them gives him inspiration and desire to be better, the other gives him gentle and secure love. That's what is similar about these two series but the choice the boy finally makes is different. I'm sure that if you liked one, you would like the other.