St. ♥ Dragon Girl (聖[セイント] ♡ ドラゴンガール, Kiyoshi Seinto Doragon Gāru) is a Japanese manga by Natsumi Matsumoto, who also created Yumeiro Patissiere.
It is followed by a sequel series titled St. ♥ Dragon Girl Miracle (聖[セイント] ♡ ドラゴンガール みらくる, Kiyoshi [Seinto] Doragon Gaaru Mirakuru) which focuses on Momoko and Ryuga's daughter, Anjuu Sendou.
He also likens the series to a root beer float, "At some point, you might be too old to have such a really sweet treat in an extra-large size, but it is still sooooo good".
"[6] Ed Sizemore of Manga Worth Reading felt that Matsumoto managed to create a cast of wholesome people that aren't boring", but was frustrated by the main characters' refusal to admit their mutual attraction to each another.
[7] Anime News Network's Carlo Santos disliked the first volume, considering it episodic and formulaic nature, similar to other high school romances, and having ordinary art work.