Wakura is so confident of getting into his chosen high school that he stops taking his tests. Unfortunately, he gets every question on his entrance exam wrong, leaving him to be thrown into a truck, put on a boat and then taken to Promised Island. There, he finds out that he was entered, by recommendation into a high school, not to mention he has twelve adopted sisters on the island that will be attending with him! More than anything Wakura wants to get off the island and get back to his old life, but eventually his sisters help him feel welcome. Together, Wakaru begins his journey of living and growing up with his twelve cute sisters.
Goro Mutsumi is a young man that never seems to catch a break; he has a hard time keeping a job, has horrible luck, and continuously finds himself in bad circumstances. However, things change one day when he comes home - having been fired yet again - and finds three young girls sitting in his apartment. They're the reincarnated angels of his deceased pets, and they're here to turn his luck around given how well he treated them in their past lives. While the idea sounds like a godsend, things don't go quite according to plan; the angels tend to cause more harm than good, and twelve altogether end up joining Goro's cramped household! In addition to learning how to co-exist with his newly acquired roommates, Goro must also defend them and himself against four sacred beasts who are after him for mysterious reasons. One thing's for certain: Goro's life will never be the same!
Their are many similarities between Angel Tales and Sister Princess. They both feature a man who suddenly finds himself having to support not only himself, but also 12 girls/women who claim to have a past connection with him but offer little to know proof of this relationship. Despite this they choose to share a home with them and try to make them happy.
Both anime have a boy that suddenly becomes surrounded by tonnes of girls that want nothing more than to make him happy by any means. Angel tales is more fantasy as the girls are angels of his past pets where Sister princess is just about a boy who suddenly gets lots of sisters. Mindless cuteness and random acts of sillyness prevail! If you liked one check out the other.
Chitose Hitotose was orphaned at a young age and is now in high school. He yearns for a family and a place to belong, but his long years of independence and isolation are setting his feet on a dangerous path. What is the solution that his teachers conceive? He needs a mother... but it's not just one, but five "Mamas!" Absolutely no one can discover that his teachers live under his roof, and he has to hide the fact from everyone, from the class president to the principal! With their maternal instincts in overdrive and mysterious pasts, can Chitose learn the lesson of happiness?
These are both very cute and warming harems, where the main character is a bit stressed over the females that he lives with. They are both lovely animes with just enough random events to keep you entertained. To me, they seem extremely similar.
Rino is an orphan whose only memento of her mother is a taking puppet named Puuchan. After a generous donation from a mysterious benefactor, Rino finds herself enrolled in the prestigious all-girls high school known as Miyagami; and thus her adventure begins! With Rino’s naïve nature and Puuchan’s sadistic streak, the duo quickly takes the school by storm. From the ranks of the seemingly all-powerful Best Student Council, Rino and Puuchan change the lives of everyone they meet, like it or not!
What does an extremely siscon harem anime have to do with a slightly yuri gokusen anime? Incredibly both Sister Princess, and Gokujo Seitokai have quite a bit in common: unbelievable characters that are so extremely dissimilar as to be virtually impossible to collect together into a story, a cast which is a bit too large to effectively use in an approximately 23 minute long episode, obvious intentional plot holes that are supposed to pass for jokes, and a tendency to continue using a mediocre plot device after it is far past being useful. But hey, if you liked one series, then I can't see any reason why you wouldn't like the other.
When Chii’s father remarried, she gained more than just a stepmother - she also became the stepsister to thirteen brothers! And as if her now massively-sized family isn’t enough to handle, the girl also learns that they’ll be moving in together! Chii’s new brothers are eager to help her feel welcome, but with everyone living together without parental supervision, the arrangement might lead to more than just new friendships...
After his father decided to work overseas, Nozomu moved to the town of his childhood to attend school -- but this is no ordinary town! There is a legend that twins once loved a man so much that they turned into birds and flew away, and the abundance of twins to be found is the result. For Futami, having multiple twins who like him is a dream come true, but also a lot of work since they all want his attention! Now, with jealous fan clubs, sibling rivalry and an ornery goat named Billy to handle, Nozomu must try to win the affections of his childhood friends and new faces alike!
Sister Princess and Futakoi have a few similar themes though not the same reasons. Futakoi has many sets of twins trying to win over the feelings of the main male lead. Sister Princess is more of how the younger sisters of the male lead compete for, and adore his attention. Both have a similar animation style and a light comedic feel. I belive that one who enjoys one of these series would likely find the other interesting.