Yakuza/delinquents○°☆ BL manga○°☆ completed

Summary:
"Touma, the next in line to succeed as the head of the Hyuga Group, spends his days beating up street punks and chasing after pretty women.
However, everything changes when his father, the head of the group, assigns him a new bodyguard. His bodyguard proclaims: "I am ready to sacrifice my everything for you no matter what the cost," yet what is he hiding from the young master?"

Summary:
"Haruka Shirakawa couldn't care less about becoming the top fighter amongst his peers... but his friends sure do. And after achieving just that, next his friends urge him to take on the famous Kazuyuki Narumi, the legendary senior who graduated undefeated... and their new classic literature teacher!? Will Mr. Narumi accept Haruka's challenge to a one-on-one?!... Of course not. Mr. Narumi is a teacher. Too bad rejection to a fist fight only makes the heart grow fonde

Summary:
"Student council president Terano is confident and smart. On the other hand, the good-looking, but scary yankee Kumazaki has been failing school for the past few years. One day, a friend in school catches Terano texting someone. Could it be a new girlfriend? However, Terano remains quiet on th subject... No one would have guessed that the rebellious Kumazaki is actually quite shy, and is completely wrapped around Terano's finger..."

Summary:
"High schooler Minorikawa Narumi becomes an orphan after losing his mother. One day, his grandfather who he never knew comes to offer incense and shares he’d like Narumi to take over the company he is managing. However the company he’s talking about ends up being a yakuza organization..!? Suddenly addressed as “Bocchan,” the once lonely Narumi begins to gradually open his heart up to the kind Wakagashira, Ioroi, who is in charge of his daily needs. (..

Summary:
"Kuroi is a 37 year old man serving as the second in command of a sub-group headed by a major Yakuza family. His childhood friend, Shirakaba, has been asking to join the group since they were young and Kuroi has always forbidden it. Now, Shirakaba is an established lawyer and goes over Kuroi's head to get work as his legal council."

Summary:
"At a high school full of delinquents, Leo Shishiyama, a boy who looked cute but was the best fighter, is puzzled. Takeru Kurosawa, who had constantly challenging Leo to fights that ended up in a draw, has sent him an eighth challenge letter. Leo likes winning, but he doesn't particularly like fighting, and enjoys gorging on strawberry rice cakes, his favorite snack, much more. (...)"

Summary:
"“This cute sweet-tooth samurai is forever mine…”
Kenzaki Ryuunosuke, also known as Samurai-sensei, is an Ω who often gets mistaken for an α because of his manly look and strong power.
He took over his grandfather’s dojo and became a kendo teacher, though recently, weird people have been visiting him for the shopping center development of the area.
He protected the dojo, having the table turned on them as if it’s nothing. (...)"

Summary:
"Tsubame would rather die than do any dirty jobs at the yakuza group he'd been sold to. Does dealing with an overgrown yakuza manchild count as a "dirty" job? It depends on what kind of job he gets handed over..."

One night, brash blonde high school student Toraji went to a party with his childhood best friend, Ryunosuke. At the party, they both got lucky and ended up having a threesome with a cute girl. However, in the heat of the moment, Ryunosuke leaned over the girl's shoulder and kissed Toraji deeply! What's a yankee boy to do when he realizes his best friend is in love with him!?