Ryousuke Kase

 (加瀬 亮介, Kase Ryōsuke) is a character in After the Rain. He is a college student and part-time chef at Garden who had a sexual interest in Akira Tachibana. When he learns about Akira's infatuation with Masami Kondou, Kase blackmails her by forcing her to date him in order to keep her secret intact.

Appearance
Kase is a relatively thin and attractive man with wavy shoulder-length blonde hair that he keeps in a low ponytail with a single hair strand hanging on the left side and half-lidded eyes which make him appear to be shrewd.

He has a keen sense of fashion, often dressing stylishly outside of work. He has

Personality
Kase is a perceptive and observant guy who is quick on picking up the thoughts of other people and the underlying story. He tends to be very straightforward in pointing out weaknesses and flaws in everyone, caring not a whit about the impact of his harshness. He can be rude and aloof at times, especially when Takashi Yoshizawa attempted to be friendly to him.

He is handsome in the eyes of girls, but he is seen as a player with a flirtatious nature, hence making his female coworkers avoid him. When paired with his cunning personality, he easily manipulates a situation to his own desire, much to the annoyance of others.

While generally perceived to be a terrible person, he does good at his work of cooking, putting in effort when the other staff are on leave and when the restaurant is in a peak period.

History
Kase's parents are believed to be divorced and he is currently living with his step-sister, with whom he develops a close emotional bond He feels trapped by his own attraction towards her, and spends a lot of time dating other women to counteract his own torment.

He is the chef working on a part-time basis at Garden, along with the other chef, Ootsuka. He also tutors high school students part-time, although he has a preference for only teaching female ones and is "disgusted" by doing otherwise.

With Akira Tachibana, he initially sees her as just another part-time employee at his workplace, but he gradually starts to notice her every action after realizing that she is actually a cool beauty who does not have a variety of facial expressions. He decides to taunt an emotion out of her by offering a free side dish to her usual sandwich meal, which she nonchalantly thanks him for it. Later on, he joins her for a meal and notices that she is reading an assigned novel and states that the book gives him memories of being in high school as well, asking if he could borrow it for a moment. Akira agrees and finishes her meal, leaving the book in his hands and leaves the staff room. Kase browses through her book and spies on her doodles of her and her infatuation, Masami Kondou. Akira, having realizing the embarrassing doodles in her book, rushes back only to find Kase slyly looking at her. She realizes that he is now aware of her love for the manager and asked him to keep it a secret. He agrees under one condition: to go on a date with him.

Chapter 73
At the staff New Year's party, Kase makes a snide remark about Yui Nishida quitting because she can't get a boyfriend and Akira Tachibana punches him.

Etymology

 * The name Ryousuke means "clear" (亮) (ryou) and "forerunner, herald" (介) (suke).
 * Ryousuke's surname Kase means "add, increase" (加) (ka) and "swift current, rapids" (瀬) (se).

Trivia

 * Hayato Isomura plays as Kase in the live action film.