The Man From The South: A secret admirer leaves a love letter in Sousuke's shoe locker. Instead of finding the letter, he deduces that his locker was tampered with and promptly blows it up. From its fragments, Sousuke misinterprets the letter as a death threat and confronts his "stalker". A Hostage With No Compromises: After Sousuke's encounter with a gang leaves its members disrespected, their leader decides to take Kaname hostage. Instead of giving in to their demands, Sousuke holds the gang leader's little brother hostage and proposes an exchange.

Hostility Passing-By: After Sousuke causes a panic at the school's bread stand, Sousuke and Kaname have to fill in for the stand's lunchtime duties, which raises the ire of the physical education teacher. He attempts to sabotage their bread, but he falls for Sousuke's booby traps, when Sousuke was expecting that someone would tamper with the bread. A Fruitless Lunchtime: Sousuke forgets Kaname's notes at home, and they make a frantic dash to retrieve them and return before lunchtime ends. Despite their tardiness, they find out that the notes were not needed since their teacher coincidentally fell sick.

During a day at the beach, Kaname becomes upset at Sousuke's insensitivity. When she goes off alone, she is asked to have tea with a boy who is enamoured with her. Sousuke, however, believes that she was kidnapped and proceeds to rescue her from her apparent kidnappers.

The Hamburger Hill of Art: During a field trip to the park, the class selects Sousuke to be the model for their art project. However, Sousuke misinterprets the modeling advice he receives from their art teacher, turning the assignment with his classmates into a game of life-and-death. Single-Minded Stakeout!: Kaname goes on a date with a former classmate to an amusmement park while Sousuke and Kyoko follow her. Sousuke seems relieved that she's simply on a date until drunken yakuza threaten Kaname. Not wanting to reveal that he was following her, Sousuke comes to the rescue disguised as a park mascot.

The Pure Yet Impure Grappler: Sousuke and Kaname ask the school's karate club to vacate their dojo, which is slated for demolition. However, the club refuses to leave, challenging Sousuke to a duel where they'll leave if they lose. Sousuke defeats the club's members with relative ease until he faces the club president, Issei Tsubaki. Trespassing on Good Faith: As a test of superiority, Sousuke and Issei compete to care for the injured school janitor; however, their overzealous efforts do more harm than good. The janitor tries to be patient, but finally goes berserk when they accidentally serve his prized koi pet to him for dinner.

The Hard Sell Fetish: Sousuke and Kaname investigate bizarre incidents where a masked predator attacks schoolgirls and gives them ponytails. With the help of a local policewoman, they set-up a trap to catch the attacker using Kaname as bait. The Patient of Darkness: To teach a stoic Sousuke the meaning of fear, Kaname takes him into a haunted hospital, but she becomes more scared than Sousuke. They learn that the haunted hospital rumor was perpetuated by the mother and son living there who wanted peace and quiet.

To prevent the school from disbanding the rugby team, Sousuke and Kaname help train them for an exhibition match. Upon discovering that the players are timid and passive, Sousuke subjects them to grueling basic training to toughen them up, which helps them win the match.

During a lull at the Mithril base, Tessa decides to spend the time as an exchange student at Sousuke's school to learn more about school life. Sousuke, however, finds the stress of guarding her overbearing and collapses from fatigue.

Sousuke, Kaname, Tessa, Melissa, and their friends travel to an onsen(hot springs) for some rest and relaxation. Sousuke sets up a defensive perimeter and booby traps around the girls' bath, foiling the other boys' attempts to sneak a peek.

Sousuke and Kaname discover that Ren Mikihara is a yakuza daughter whose members ask for their help to deal with a rival gang. Sousuke, in his mascot disguise, trains the yakuza members. When the rival gang kidnaps Ren and Kaname, Sousuke and his recruits rescue them wearing special mascot AS's.

The school's social science club holds a contest to see which club can recruit the most members of the opposite gender. Sousuke participates, but his poor social skills fail to attact anyone to his club. Kaname, feeling sorry for Sousuke, decides to help out so he can avoid a bet he made with another club.