Full list of all 46 AKIBA'S TRIP: Undead & Undressed achievements. It takes around 35-40 hours to unlock all of the achievements on Windows.
Chained 50 attacks.
Obtained every trophy.
Attended Rin's public concert.
Emerged victorious against Zenya...with a little help.
Inferred information about Rin and Daishihon Pharmaceuticals.
Defeated Zenya at the battle arena and turned him back into a regular otaku.
Achieved the true end in Shizuku's route.
Achieved the true end in Rin's route.
Achieved the true end in Tohko's route.
Achieved the true end in Shion's route.
Achieved the little sister ending.
Obtained every ending.
Cleared the game.
Cleared the game on Gamer difficulty.
Cleared the game on Otaku difficulty.
Removed 50 articles of clothing.
Removed 300 articles of clothing.
Tore 300 articles of clothing.
Collected 100 pieces of underwear.
Connected 100 hits via counterattack.
Executed Counter Strip 30 times.
Executed 20 finishers.
Chain-stripped 12 articles of clothing.
Chained 200 attacks.
Executed Unison Strip with all 6 partners.
Gained the ability to wear women's clothing.
Changed clothes on all parts of the body.
Purchased items at every store.
Cleared the battle arena with an S rank.
Cleared 10 unique side missions.
Cleared 30 unique side missions.
Collected 25 different weapon types.
Collected 50 different weapon types.
Collected 25 different types of headgear.
Collected 25 different types of upper body clothing.
Collected 75 different types of upper body clothing.
Collected 25 different types of lower body clothing.
Collected 75 different types of lower body clothing.
Collected 25 different types of footwear.
Collected 25 different types of underwear.
Collected 25 different types of accessory.
Collected 100 ad flyers.
Achieved level 30.
Acquired one million yen.
Refined a weapon or article of clothing for the first time.
Refined any weapon or article of clothing up to 999.