The Chair Gachapon House looks as ordinary as any other house in the Ludibrium town. I suggest devs who do sprite or mapping can design the house and make it stand out from the rest of the buildings. I mean, it's a once a year special event, it deserves a little bit extra attention. Also, this makes it easier for newer players to locate the chair gachapon house.
This feedback didn’t receive much support by the community. Some might like the current design, some not. We have no plans to make a change here. Thanks for your feedback!