Full-Time Magister: Summoning Agumon at the Start

Lin Chen, who woke up to find himself transmigrated to the world of Full-Time Magister, immediately encountered the crisis in Bo City!
In a moment of crisis, he activated the Digimon System, awakened the Summoning type, and summoned Agumon right from the start...
Lin Chen leads his Digimon adventure into the magical world, fighting alongside WarGreymon and fusing with Guilmon to transform into Gallantmon...
As a great war approaches, and countless sea monsters sweep across China...
Speaker Shao and Chief Hua looked nervously at the man in the sunlight: "Lin Chen, what should we do next?"
Lin Chen transformed into the Vajra Martial God Beast, leading a group of Mega Evolutions, and calmly said, "I'll leave this to you. I'm going to beat up that guy called the Ocean Emperor..."