Long ago, a human managed to defeat the oldest, most powerful dragon of them all. This dragon was so strong that even the gods feared it, but it accepted its end all alone. Then, suddenly, the dragon woke up in a new life as a guy named Dolan, living in a faraway village. Living as a regular person now, Dolan works hard in the fields and hunts for food. Even though life in the village is simple, it's also cozy and makes him happy in ways he never felt as a dragon. But one day, while exploring a swamp, Dolan meets Celina, a creature who's part human and part snake called a lamia. She's looking for a partner but admits she's not great at getting humans to like her because she's part snake. Despite their differences, Dolan and Cerina start to become friends. However, they face lots of challenges from outside forces. Join them on a magical adventure as a once-mighty dragon begins a new life in a quiet corner of the world! (Source: MAL News)

With Rabbi Village greatly expanding under the management of his subordinates Isami Tahara and Yuu Kirino, Hakuto Kunai can now resume his adventures while looking for items to counteract magic. He begins his search at the Prison Labyrinth in Rookie Town, where a secret laboratory deep within the dungeon gives him insight into technology that is far more advanced and dangerous than anything in the rest of the world. Meanwhile, Rabbi Village has gained unwanted international attention from the newly formed Queendom of Xenobia, which wishes to drive a wedge between the Holy Kingdom of Light and the State of Right. But with Kunai's newly summoned aide, Akane Fujisaki, at his disposal, things may not go as the Queendom plans.

People fall in love in the most mysterious of ways. This statement seems to be especially true for the affluent genius playboy Ryou Amakusa. When he nearly falls off the stairs one rainy morning, a girl named Ichika Arima saves him. As if by fate, Ryou encounters Ichika again later that night; she happens to be the best friend of his little sister, Rio. Wanting to "thank" her, Ryou attempts to woo Ichika by employing his usual flirtatious tactics only to be immediately shot down, his target creeped out by his behavior. Rather than being discouraged, Ryou instead becomes more enthralled by her, and he begins to do everything he can to steal Ichika's heart despite receiving disgusted reactions each time. However, as time passes by, will Ichika remain repulsed by Ryou's creepy yet dedicated advances?

Following the events of their trip to Okinawa, Saitama University graduate students Shinya Yukimura and Ayame Himuro have failed to obtain the data necessary to scientifically prove their love for each other. Unable to replicate the exact conditions of the trip, the two stubborn scientists decide to seek help from elsewhere in the university—the Biological Sciences department. Assisted by fellow graduate students and longtime couple Chris Floret and Suiu Fujiwara, Yukimura and Himuro begin to quantify their feelings by measuring their output of oxytocin in various romantic situations. The two scientists soon find that their feelings for each other are nothing compared to that of a mature couple. It is here that Chris poses a question to both Yukimura and Himuro: what will they do if their "affection" is proven not to be love after all? Desperate to find a scientific rationale for the discrepancy, Yukimura puts everything on the line to prove that their "love" is real.