If you're looking for anime similar to Ochitekita Ryuuou to Horobiyuku Majo no Kuni, you might like these titles.
Issei Hyoudou is not your average high schooler. In fact, he is a reincarnated devil who dreams of becoming the Harem King. He usually spends his school days in peace, together with his many friends. However, one day a devil named Diodora appeared...
Eris is interested in learning more about the games enjoyed on Earth, so the gang spends the day playing several different kinds. Manami raises the stakes by suggesting some serious prizes, some of which prove to be quite incriminating!
In the world, there are those who hunt down rare and powerful items known as Lost Precious, including Ryuuji Kisaragi’s own parents and cousin Eriko, who’s been studying abroad for the last few years. But when Eriko suddenly returns, the boy finds himself in the middle of the action when she drags him along to intercept a special treasure from the nefarious Fang organization. What’s more, the duo soon discovers that this Lost Precious isn’t a jewel or trinket, it’s a rare dragon girl who instantly bonds with Ryuuji! Now, Ryuuji and Eriko must help teach this dragon - who they name Rose - about the world, while keeping her safe and meeting other new friends and dragons along the way.
Haruo is a short geeky schoolboy with a whiny voice and glasses, and the only one in his family without magic powers. Therefore it should come as no surprise that his life is a constant struggle to prevent being ravished by any nearby female. When a witch under a curse named Mamiya enters the fray, Haruo's precious maidenhood that he holds onto so dearly is placed in grave danger. With the added risqué brought on by the arrival of this new number one contender, Haruo's struggle becomes even more desperate, and his hidden powers begin to awaken.