As the only son of a yakuza boss, Ranmaru Oumi is set to marry his childhood friend Kaoru in an effort to unite their families - but he's not happy about it! When a wedding night spat sends Ranmaru to the cruise ship's bar, he meets Alberto "Al" Valentino, an Italian man with a love of all things Japanese. Between Kaoru's bossiness, fights with a rival gang, and Al's unexpected advances, Ranmaru is sure to have a honeymoon to remember!
It should be the greatest day of Saitou Toshihisa’s life; he is getting married to the beautiful Remi, and his best friend Nagai Atsushi is at his side as his best man. However, things are different for Nagai, who realizes that he is in love with Saitou. After the ceremony Nagai sets off to drown his sorrows at a bar and meets Honda, one of the bride’s co-workers. This marks the beginning of their romance, but things become complicated once Nagai comes home the next day: Saitou is at his place, crying. His wife ran off with one of her co workers – what is Nagai going to do?
Chisato Takatsukasa would like to think he's a normal concerned parent. His attractive son, Riju, has many male friends and Chisato is certain that they all want nothing more than to take advantage of him - and thus he concocts schemes to scare away each and every one of them. However, there's one man who doesn't seem to get the hint: Shunsuke Sakaki, Riju's best friend who is secretly in love with Chisato. Through a series of encounters Chisato comes to realize he has feelings for Shunsuke as well, but what about Riju and his feelings?
Both are excellent examples of the Yaoi Genre. They both have sex scenes, though not overly explict.
In addition, they both have a reluctant/resistant (at first) love interest, and a confident and unrelenting pursuer.
The art styles are also very similar. Not sure if its because they were by the same studio (Because I don't know!) But if the style was one of the things you particularly enjoyed about one, then it's likely something you'll enjoy in the other.