Calasin

"Sell to your heart's content until we clear our warehouse."

- Charasin, Volume 2 Annex

Charasin ("Karashin" in the Crunchyroll translation of the anime), also known as Young Boss Charasin, is the guild master of 8th Shopping District Center, one of the top three production guilds in Akihabara. He is a Summoner and a member of the Round Table Alliance.

Personality
Charasin is considered to be a very shrewd businessman and will take advantage of any transaction or deal to ensure that he gets the largest profit possible.

Prior to the Catastrophe
Charasin worked in an advertising agency. In Elder Tale, he partied with Maryelle occasionally until they formed their own guilds and were too busy to interact with each other as a result.

The Catastrophe
Charasin can be seen in the Inn, discussing something with another player.

Villain in Glasses
Charasin is checking on the guild's inventory, noting that they were almost empty. Having been summoned by Maryelle and Henrietta for a meeting, he decides to take advantage of the situation. However, having been given instructions by Shiroe, the two women manage to persuade Charasin into agreeing to supplying them with ingredients for the Crescent Moon refreshment stand for 30,000 gold.

He stays to attend Crescent Moon's meeting with The Rodrick Firm's and Oceanic Systems (Marine Agency)' guild masters Rodrick and Michitaka. Along with the other two guild masters, he comes under the false conclusion that there was some sort of new legendary quest that Crescent Moon Alliance was undertaking and agreed to cooperate with Marine Agency and The Roderick Firm in donating a combined total of 1.5 million gold to fund this quest. Later on, the truth about the gold's use is discovered, but the three crafting guild masters receive Crescent Moon Alliance's food recipe secrets.

Round Table Conference
Charasin and the bosses of the other Production Guilds reveal that they had created a Steam Engine, which proves that out-of-game devices can be created. As a result, new inventions and products will be in high demand, and therefore will get the economy going. As a result, he and the other bosses agree to the creation of the Round Table Alliance.

Invitation from Eastal
Charasin and Rodrick stay behind to work on the Ocypete and other projects, after beating Michitaka in a game of rock-paper-scissors.