From Scum-Scans:
Chocolat is a mature comedy series about halforphan Tatsumi Chiyoko whose father was caught in huge debt. Now living with Omugi Matsukichi, an ex-underground king who opened a pastry shop, she gets to know people like Katou Ichigo, an ex-inmate. With people after her father's whereabouts, what will happen to her?

In a faded little rural town, Kaworu lazily lives out his days. Until the day his destiny strikes, and he meets an angel. Just moments later, they quickly take off... Together, away from this reality!
(Source: MU)

Noumo Kanaiita Kitte Yarakaashi Hoi Outoigonsu, called Watanabe for short, is an alien from a planet 20000 light years away. He is at homestay in Japan to do research for his thesis on earthling culture.

Makunouchi: Kubonouchi Eisaku Kessakushu is a collection of short stories that seinen author Kubonouchi Eisaku, known for notable titles such as Chocolat, Cherry and Watanabe, has written in his early days. The contents of this book include:
Laplace
Yocchore! Tosamaru-kun
Bell
Robot High School Girl Kaoruko's "Heartbreak"
Bizzare -- The Terror of the Salmon-Man
Robot High School Boy Kawarazaki Ayumu's "Seishun-I-N-G"
Help!
Viva Eros Academy
Okappiki Eiji
Dream of Pumping Up
Present
"Makunouchi" is a kind of bentou, served during Kabuki in the olden days. It either got its name from the lunch the audience would eat during intermission, or perhaps from the lunch actors would eat during this time (seems plausible since the actors are also "behind the curtain", which is actually the literal translation of that phrase).