Absolutely. This is not a standalone chapter. The fusion mechanics and character motivations are built over 50+ chapters. Start at Chapter 1.
The chapter opens with Kaito’s HP at 12%. His main combat slime, , has been shattered into 20 pieces. The enemy—a Mithril Golem Knight —boasts immunity to physical and most magical attacks. Kaito realizes conventional Hanshoku summons are useless. Absolutely
"Not bad for a 'trash skill,' huh?" he muttered. Absolutely
Geki Tsumi Dungeon Desu Ga 'Skill: Hanshoku' de Gyakuten Shitai to Omoimasu Absolutely
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If you’d like option 1 or 2, just say the word and I’ll write it for you immediately. For example, here’s a brief original scene in the style of the series: