Shuudengo, Capsule Hotel de, Joushi ni Binetsu Tsutawaru Yoru.

Romance

The manga centers on Minori, an office worker, and her boss Hadano, who are constantly arguing with each other. One night, after a company drinking party, Minori and Hatano are having their usual argument, when Minori realizes that she has missed the last train. They decide to spend the night at a nearby capsule hotel, but an incident forces them to share the same unit. (Source: ANN)

Meg to Seron

Action Adventure Fantasy

A spin-off of the Lillia and Treize series starring Lillia's perky, kind-hearted school friend, Megmica "Meg" Strauski, and stoic, bookish Seron Maxwell.

Hitotsu no Tairiku no Monogatari: Allison to Will to Lillia to Treize to Meg to Seron to Sono Hoka

Adventure Drama Fantasy

After Allison sees off Major Travas on his trip, the plane he was on explodes and crashes. Meanwhile, the members of the newspaper club of the academy Lillia attends begin their investigation on the 'mysterious transfer student' Treize. Upon coming across a strange phenomenon around the school lockers, they gradually get engulfed in a huge incident. Join the characters of the Allison series as they take their final bow in this two-volume adventure and school life story combined into one!