Welcome to NGB! This Digimon Story Time Stranger guide covers the A Stubborn Fighter side mission. We’ll outline how to start the quest, the rewards you’ll earn for completing it, and a full walkthrough of every step required. Use this guide to progress smoothly and ensure you don’t miss any key objectives along the way.
Quick Links
A Stubborn Fighter Walkthrough
A Stubborn Fighter Side Mission Overview
- Client: Gankoomon
- Summary: Ugh, how boring. Where the heck has Jesmon wandered off to? Didn’t I say to meet at the Paradise Colosseum?
- Rewards:
- Anomaly Points x100
- Courage Point V
How to Start A Stubborn Fighter
You will automatically begin the A Stubborn Fighter side mission in Digimon Story Time Stranger during the Royal Knights, Assemble! side mission.
A Stubborn Fighter Side Mission Walkthrough
Talk to Gankoomon
To find Gankoomon, travel to the Digital World: Factorial Town (Present Day) area and make your way to Paradise Colosseum.

Head to the northern part of the area to find the Digimon you are looking for and speak with them. Gankoomon will then ask you to find Jesmon and bring it back to him. Apparently, the Digimon left to try out some ramen.
Tell Jesmon that Gankoomon is Waiting

Return to The In-Between Theater and use it to travel to the Higashi-Shinjuku: Back Alley (Present Day) area. You’ll then want to use the taxi there to travel to the Akihabara: Intersection beneath the Overpass area.
Once you arrive, head to the northeastern part of the area and use the map transition to reach the Akihabara: a Certain Back Alleyway. From there, walk north down the street to spot Jesmon at the end.
Order Some Ramen
Speak with the Digimon to learn that it is having difficulties placing an order. It will ask you what to order, presenting you with three options. Pick whichever you want to continue with the mission. We chose extra garlic, which they seemed to like!
Report to Gankoomon
Now that Jesmon has had its ramen, it set out to return to its master. Head back to the Paradise Colloseum and speak with Gankoomon, who will reward you with a fight!
Fight Gankoomon
To start the fight, speak with the Volcanomon behind the counter and choose the Might Mad Man from the list.
- Gankoomon – Level 55
- Data / Holy Knight / Mega
- Weak: Water, Ice
- Resists: Electric, Earth
After the fight, Gankoomon will mention that Alphamon told it not to act like a Royal Knight and that it wasn’t sure if humanity was worth saving. It will then ask for your help on whether it should join the fight. The side mission will be completed afterward.
Related Digmon Story Time Stranger Content
- Complete Side Missions List: Visit our Digimon Story Time Stranger Side Missions List and Guide for a complete list of the game’s side missions!
- Complete Digimon Guide: Explore our Digimon Story Time Stranger Digimon Field Guide to view every Digimon, their stats, skills, digivolutions, and more!
- Personality Type Guide: View our Digimon Time Stranger Digimon Personality Guide to learn more about Digimon Personality Types!
- Main Page: Visit our Digimon Story Time Stranger Guides and Walkthroughs hub for all our latest content!
- Official Website: Check out the official Digimon Story Time Stranger website for news and updates!