The PC version includes all the DLC for free, and so achievements that require all characters include everyone except Daidoji and Rin for that version. However, the text on the achievements wasn't updated from the Playstation version so it incorrectly says you only need Hanzo and Crimson Squad characters for some achievements.
Completed Story Mode with all the default Hanzo x Crimson Squad characters (PC version requires all characters but Daidoji and Rin, despite description).
Gold
The Wonders of Width
Completed Asuka's story.
Bronze
For the Safety of this World
Completed Ikaruga's story.
Bronze
Queen of the Hooters Harem
Completed Katsuragi's story.
Bronze
Love for Hibari!
Completed Yagyu's story.
Bronze
Sweets Go Somewhere Else
Completed Hibari's story.
Bronze
Comedy Gold
Completed Homura's story.
Bronze
The Sprouts Forgive You
Completed Yomi's story.
Bronze
This is My Calling
Completed Hikage's story.
Bronze
Does This Make Me Mature Now?
Completed Mirai's story.
Bronze
Let's XXXXX!
Completed Haruka's story.
Bronze
Super Dish Initiate
Completed any mode once. (Doesn't matter if it's Story Mode, Arcade Mode or Free Mode.)
Bronze
Oh My...
Lost in a cooking battle and got stripped.
Bronze
Absolutely Perfect
Completed a cooking battle without any mistakes
Bronze
Have a Rich Experience!
Reached a total of 5000000 (5 million) points.
Bronze
This Woman Knows Stuff!!
Reached a total of 10000000 (10 million) points.
Silver
Not a Beginner Anymore
Hit a total of 5000 notes.
Bronze
Nice Boobs
Hit a total of 11081 notes.
Silver
Happy Cooking
Hit a total of 50000 notes.
Gold
Special Delivery
Made your first Special.
Bronze
A Lot of Boobs
Saw all the default Hanzo x Crimson Squad characters' Specials (PC version requires all characters except Daidoji and Rin despite description).
Silver
Breathtaking View!
Saw 50 Specials.
Bronze
Harem of a Hundred
Saw 100 Specials.
Silver
Panties Collector
Obtained all 49 panties (actually requires all 98 of the numbered panties, though you can use a code to unlock them all at once and still get the trophy).
Silver
Shy Girl
Played in the dressing room (Zoom in on someone's chest until they comment about it).
Silver
See All, Know All
Fully enjoyed the dressing room (Zoom in on everyone's chest until they comment about it).
Gold
Unstoppable Woman
Used a total of 100 Ninja Arts.
Silver
Master of Ninja Arts
Used a total of 500 Ninja Arts.
Gold
This is Just the Beginning
Reached Ninja Arts Lv. 5.
Bronze
Finally!
Reached Ninja Arts Lv. 15.
Silver
A Repertoire of 100
Completed 100 songs! (Doesn't matter if it's Story Mode, Arcade Mode or Free Mode.)
Silver
Cooking is My Specialty!
Completed 200 songs! (Doesn't matter if it's Story Mode, Arcade Mode or Free Mode.)