If you're looking for anime similar to Hanappe Bazooka, you might like these titles.
Makoto and Yura Onoda are a newly married couple. Luckily for them, even though their marriage was arranged, they are deeply in love. However, even though they are both 25, neither of them have any ‘intimate’ experience, and consequently, they are equally as unsure and clumsy. With a little advice from Yura's friends and sister, this newly-wed couple will eventually get it right and explore the hardships of marriage, and the wonderful world of sex, even in daring places and awkward situations.
Masayuki's parents have gone overseas, leaving him alone in the house. To his surprise, they have hired Sayaka, a fellow student from school, to work as his maid while they are gone. Masayuki wants his life to be peaceful, but alongside Sayaka's affections he also has to fend off the attention of his kohai, his younger aunt, and his aunt's yandere lesbian admirer.
Haruki spends most of his time with friends and fellow classmates Airi and Ayana. All seems well, that is until Airi and Ayana form separate clubs, the Mechanical Science Club and the Chemical Science Club. The two vie for Haruki's attention and hilarious chaos usually follows all attempts to make him join.
Yuuki's scored a full scholarship to a very prestigious school. The only catch? A ditzy teacher's error means he now has to crossdress to keep his real identity a secret! Will Yuuki pull it off... or will he be pulled to pieces by a cute, curious classmate?