Second season of Kyuuketsuki Sugu Shinu.

While exploring a labyrinth, Rentt Faina, an adventurer with lots of experience but little to show for it, is killed by a dragon upon discovering its lair. Shockingly, he wakes up to find himself turned into a skeleton, the lowest class of undead monsters. As Rentt fights against the other monsters of the labyrinth, he discovers that slaying them gains him experience towards higher stages of undead evolution—even ones with flesh! With this revelation in hand, Rentt obtains a new objective in his undeath: keep evolving in the hope of eventually becoming a vampire, the highest form of undead that is nearly indistinguishable from human beings. Despite being forced to hide his past identity and monstrous nature under an unremovable mask, Rentt manages to return to a semblance of his former life. Granted shelter by Lorraine Vivier, an elite researcher and retired adventurer, Rentt assumes her surname and starts over from scratch as a rookie. Determined to pursue his childhood dream and become a mithril-class adventurer, Rentt must be cautious not to disclose his new bodily circumstances, lest the adventurers’ guild seek to exterminate the monster he has become.

The Maine Coon is one of the largest domesticated cat breeds, standing out among other cats for its impressive size and intelligence. But regular salarywoman Saku Fukuzawa has a hard time explaining why her rescued black cat now towers over her. Yukichi is no run-of-the-mill cat; he is a masterful feline who has taken charge of the chores in the Fukuzawa household. While his master rushes to catch the train during the morning rush hour and works late into the night, the giant cat is diligently packing Saku's lunch, cooking her meals, cleaning their home, and buying groceries.

Since childhood, 15-year-old Umika Konohoshi has been fascinated by aliens, hoping to one day voyage to outer space and befriend them. Unfortunately, this fixation has caused her peers to label her as odd, intensifying her struggle with severe social anxiety. Nevertheless, Umika's passion for the extraterrestrial persists, and she deeply believes that her true purpose is outside the confines of Earth. On her first day of high school, Umika's wish of meeting an alien seems to have finally come true when she encounters Yuu Akeuchi—a classmate who claims to have crash-landed on Earth with no recollections of her past. Umika tries to seize this opportunity to make friends with Yuu, but her lack of confidence hinders her. Sensing Umika's distress, Yuu suddenly uses a strange power to delve deep into her mind, thus sparking a friendship that may just help Umika reach her dreams.