I’m a noble on the brink of ruin, so i might as well try mastering magic

I’m a Noble on the Brink of Ruin, So I Might as Well Try Mastering Magic (没落予定の貴族だけど、暇だったから魔法を極めてみた, Botsuraku Yotei no Kizoku dakedo, Hima datta kara Mahō wo Kiwamete Mita) is a Japanese light novel series written by Nazuna Miki and illustrated by Kabocha. It began serialization online in September 2019 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by TO Books, who have published ten volumes since February 2020. A manga adaptation with art by Rio Akisaki has been serialized online via TO Books’ Nico Nico Seiga-based Comic Corona manga service since February 2020 and has been collected in nine tankōbon volumes. An anime television series adaptation produced by Studio Deen and Marvy Jack premiered in January 2025.

Premise

While enjoying an evening drink, a man woke up to find he had become Liam Hamilton; fifth son of a nobleman in another world. Due to noble law saying a family loses status of the third generation can’t accomplish anything, Liam prepares to study magic; backup plans for staying alive help.

While determined to be an adventurer, Liam becomes involved with secrets of the land lost to time; slowly rising in fame to status he never hopes to achieve and becomes the land’s king. In time, nearby kingdoms desire to seize control of his land for their own means.

Characters

Liam Hamilton (リアム, Riamu)

Voiced by: Ayumu Murase^[2]

A man who has awakened in another world as the son of a noble. While unsure how he was isekai-d, Liam decided to learn magic in order to care for himself. This leads to have mastery multi-cast and finding the lost Promised Land, which he is recognized as the ruler; he later names his kingdom Liam=Radon per suggestion.

He can evolve magical beings by naming them, but Liam cannot use the same name twice. He is also able to clone himself with a Summons spell, can form contracts with others as his familiars, and create a pocket dimension that he can enter freely, but others require his permission to enter.

Radon (ラードーン, Rādōn)

Voiced by: Tomokazu Sugita (Dragon form), Rie Kugimiya (Human form)^[2][3]

Known as the Evil Dragon, whom guarded the Promised Land. She was set free by Albrevit with the intent of slaying her and becoming famous, but she was too strong for him. She has taken to inhabiting Liam after seeing him worthy of her power. Radon often consulted by Liam due to various troubles; she will often nudge Liam to think of new magics to solve issues.

Her kin are all female and asexually reproduce with magic, making the Radon Jrs truly her children. They can also alter their age via rebirth; Radon herself can take the form of a female middle schooler. It is implied she was the one behind Liam’s reincarnation, as he met Radon in her young girl form prior to becoming Liam.