Kyuutei Kagishi, [Lock] to [Release] no Nouryoku o Kakushiteitara Tsuihou Sareru: Fuuin Shiteita Maou ga Abaredashita mitai dakedo, S-Rank Boukensha to Dungeon Seiha Suru node Mou Osoi desu

Alternative : 宮廷鍵師、【時間停止〈ロック〉】と【分子分解〈リリース〉】の能力を隠していたら追放される　～封印していた魔王が暴れ出したみたいだけど、Ｓ級冒険者とダンジョン制覇するのでもう遅いです～ , The court locksmith is banished for hiding his abilities of [Time Stop (Lock)] and [Molecular Decomposition (Release)] ~It seems the sealed Demon Lord has gone on a rampage, but it's too late as I'm going to conquer the dungeon with an S-rank adventurer~