Successfully send a gift to a girl 10 times from the owner.
Watch 10 different virtual pictorials. Take a photo of a girl in Owner Mode. Watch Marie Rose's ending pictorial. Watch Hitomi's ending pictorial. Zack Edit It is unclear whether Zack and Honoka have ever actually met each other or interacted, although Honoka was at the very least familiar with him, as she sometimes calls out his name during a tag match.
Pose - Standing Flutter: As such, she loves and cares about her very much, expressing some hesitance about going on a vacation to New Zack Island and leaving her grandmother, and also spending the vacation at times wondering how she's doing.
Pose - Crouching Basic: Honoka's grandmother Edit Honoka has been raised by her grandmother for most of her life. Pose - Other Moebius Normal: Pose - Other Moebius Fast: Momiji It's unclear how and when they met, although Honoka is familiar with Momiji. Rock Climbing Master Bronze: Watch Helena's ending pictorial.
It does not matter if you win or lose; once the amount is reached, the ticket will be available for purchase at the start of the next day. Bringing Back Memories Gold: Collect 20 swimsuits for Ayane.
Edit Although none of the details have been released yet - such as how long they've been friends, how they met, or how they interact with each other - Honoka is friends with Marie Roseeven sharing a special interaction as well as being Tag Battle partners where Honoka requests to Marie Rose for a practice round.
So Many to Choose From Bronze: Raidou Edit It's unknown what their exact connection is, but she is apparently tag partners with Raidou.
Bass Armstrong Edit Like with his daughter, it is unclear whether Bass and Honoka have ever actually met each other or interacted, although Honoka was at the very least familiar with him, as she sometimes calls out his name during a tag match.
Personalised Navy School Swimsuit: The two of them can be partners in Dead Or Alive Xtreme 3. Collect 20 swimsuits for Kasumi. Dead or Alive Xtreme 3 Poledancing returns in the game. Activate the Changing Event in Owner Mode.
Collect 20 swimsuits for Momiji.
Earn all of the trophies in the game. In addition, when winning a tag battle with Marie Rose, she does Marie Rose's signature pose with her. They also both have that mysterious red mist energy, which might be the source of their move copying power.
Play and complete Vacation Mode with Helena.
Pose - Other Mermaid: Pose - W-sitting Basic: She presumably met Zack later on when she got a raffle ticket from Zack at the shopping district in Japan to go to the island, although she admitted after arriving at the island that she recognized him from elsewhere, but couldn't put her finger on where exactly.
Play Beach Volleyball 10 times. Before a tag fight, however, she says that she's "kinda scared" while conveying body language that indicated she was uncomfortable, implying that her fighting alongside Raidou is out of reluctance.
Collect 20 swimsuits for Marie Rose. Win 10 times in Beach Flags. Kokoro Kokoro and Honoka, presumably having met on Zack Island, seem to get along pretty well, since she alongside Misaki worked with Kokoro regarding giving ideas on setting up the Venus Festival.