Below is a walkthrough for Chapter 6: Serial Disappearances in Akihabara in Digimon Story Cyber Sleuth: Complete Edition.
Akihabara
When you regain control of the sleuth, head for Akihabara. Once there speak to the three people with locks above their heads on both sides of the road using the “Akihabara Disappearances” keyword. Make sure to keep an eye out for the Digimon Medal on the ground near the Weird Nerd Boy along the sidewalk on the other side of the road. That same boy will have the info you need including the “Florist Staff” keyword. There will then be three more people for you to talk to. The one you want is the Prim & Proper Four-Eyes lady near the access point. After speaking with her, return to the Weird Nerd Boy for another conversation of the aggressive variety.
Comimani Forum
Use an access point to travel to the Comimani Forum in EDEN. There will be six people with ! above their heads. You’ll need to speak with all of them but the Country Girl wearing the blue and yellow outfit will give you the location of your next destination. You can then exit EDEN.
Nakano
Travel to Nakano then head to the bookstore on 3F and speak with the Country Girl there. You’ll then need to make your way to the detective agency.
Detective Agency
Back in the agency an event will trigger.
Kowloon
Use an access point to travel to Kowloon Lv. 1 then make your way to the park in the next area. Talk to Arata to begin the search for the data which can be found in the last area of Kowloon Lv. 1. Use your Code Scan Hacking Skill on it to trigger a fight against the virus-type Digimon, Wisemon. Defeat him then exit EDEN.
Akihabara
Head to Akihabara then make your towards the shop to find Arata triggering an event. Doing this will trap you in Akihabara until you finish the next section of story.
Akihabara???
Head right past the Access Point and follow the road east. Along the way, keep an eye out for a chest you’ll pass containing a Farm Expansion Plugin. When you reach the end of the path head north for an event with Suedou. Continue heading north then take a left and follow the path to the end where you’ll find an orb. Approach it to start a fight against a GoldNumemon. Backtrack to the road you met Suedou on and head east passing another access point taking you into a new area. Now just follow a path to reach Nishino triggering a cutscene. You’ll have two fights back to back here. The first will be against Wisemon again. After defeating him, a Dead Eater will show up that you’ll also need to defeat. After stopping the Death Eater, a lengthy event will trigger where you’ll receive 1,000 CSP.
Digimon
- Armadillomon
- Gaomon
- Hawkmon
- Numemon
- Vegimon
Detective Agency
When you regain control of the Sleuth, there will be two cases on the whiteboard you can pick up, I’m Not a Flower Person… and Red Fists and Hot Sweat! You can find guides for them here if you need some guidance. Once you complete one of the two cases, another case titled Nakano Underground will be added to the board. Accepting that case will progress the story. You can use the same guide as before for a guide on the case.
Broadway 4F (K-Cafe)
Head up to the 4th floor of Broadway and enter the K-Cafe. Inside speak with Ryota sitting at one of the tables. After the conversation, return to the detective agency and accept his case on the board.
Detective Agency
Complete Ryota’s Youth case to progress the story.
Shibuya
Travel to Shibuya then head to Shibuya Records. Inside speak with Reiko Tawa near the entrance.
Detective Agency
Return to the detective agency and complete Reiko Tawa’s Case File to finish the chapter.