Resort Boin (リゾートBOIN) is a Japanese harem eroge visual novel developed Crossnet-Pie. It is the sequel to Boin. It was made into an OVA series by Studio Eromatic and Milky, which was released in three parts - the first in 2007, the second in 2008, and the third in 2009.
On spring break, Daisuke is excited for his vacation on a tropical island for some well deserved relaxation and girl watching. He finds himself quite inexplicably popular with the ladies as well. Nao and Mitsugu follow him there as well competing, as usual, for his attentions. Meanwhile he meets his cousin Maya again after a long time as well as the wild Kanae and her friend Mika.
Tropes used in Resort Boin include:
- A-Cup Angst: Maya is ashamed of her small breasts.
- Aggressive-Submissive: Mika and Kanae are persistent in their seduction of Daisuke, but let him do most of the work when they do have sex, but under their direction. Also, Mika takes the submissive role to Kanae.
- All Love Is Unrequited: Maya has a crush on Daisuke but feels like he ignores her, but he ends up proving her wrong.
- Big Breasts, Big Deal: Noa is quite proud to have the biggest breasts in the cast.
- Big Lipped Alligator Moment/Gratuitous Rape: Momo encounters a Giant Man-Eating Plant that strips and rapes her with its mouth full of Naughty Tentacles. Then it spits her out and the OVA continues as though that scene didn't happen. For bonus points, Momo wakes up with her clothes back on, fully intact, when the others find her.
- The rape-plant-monster appears again in the second OVA, this time attacking Mika in full view of the other characters, and Daisuke saves her before she gets penetrated. However, Momo only expresses mild shock at seeing it again, and never shows any signs of trauma at what happened to her, and besides Mika using the incident as an excuse to seduce Daisuke, nobody ever brings it up afterwards.
- Bi the Way:
- Mika and Kanae enjoy sex with each other as much as they enjoy sex with Daisuke.
- Nao and Mitsugu stimulate each other during their threesome with Daisuke in a hot spring.
- By the end, all the girls have explored each other's bodies as much as they have Daisuke's.
- Black Bra and Panties: Worn by Mitsugu as a dominatrix.
- Bondage Is Bad: After kidnapping Daisuke, Mitsugu seduces him as a dominatrix.
- Braids Of Action: Mika wears the two braids on the sides of the head variant, fitting for a tomboy.
- Chivalrous Pervert: Daisuke will have sex with any girl who throws herself at him. He also cares for their well-being, and will rescue them from danger if necessary.
- Clingy Jealous Girl: Nao is the most possessive of Daisuke.
- Cosplay Cafe: Momo and Maya work as waitresses at a beachside maid cafe.
- Curtains Match the Window: Daisuke has brown eyes and brown hair.
- Cute Clumsy Girl: Momo is constantly tripping over her own two feet.
- Fanservice: Everyone is in their swimsuits and sexy outfits most of the time, so there's plenty of eye candy even without sex.
- Friends With Benefits: Mika and Kanae aren't dating but engage in lesbian sex and use toys on each other.
- Genki Girl: Nao is very energetic and friendly.
- Girl On Girl Is Hot: Daisuke gets an erection from watching Mika and Kanae do it.
- Green-Eyed Monster: Nao and Maya both have green eyes, and they're both quite jealous of Daisuke being with other girls. Mika shows a bit of this as well.
- High Heel Power: Kanae wears high heels and is competently in-charge during sex.
- Innocent Blue Eyes: The blue-eyed Momo is the sweetest girl in the cast.
- Kissing Cousins: Daisuke's harem includes his cousins Nao and Maya.
- Ladette: Mika has a rather boyish personality.
- Lesbian Jock: Mika is a surfer and bisexual.
- Lipstick Lesbian: Kanae is the most feminine girl in the cast, and is also bisexual.
- Little Black Dress: Mitsugu wears this as she seduces Daisuke at a fancy party.
- Mafia Princess: Mitsugu is the daughter of a crime family and kidnaps Daisuke to keep him to herself.
- Making Love in All the Wrong Places: There are several public sex scenes, including in a shower and at hot springs.
- Masculine Feminine Gay Couple: Tomboy Mika and Girly Girl Kanae.
- Nice Hat: Kanae wears a sun hat at the beach.
- Overly Long Name: Mika Kuouzumiaiginsusutakeizumonokamimeichoujin.
- Passionate Sports Girl: Mika is a proud surfer.
- The Peeping Tom: If Daisuke is banging a single girl, there's a good chance another girl is spying on them.
- Polyamory: Daisuke gets a harem of six girls who all end up agreeing to share him.
- Rapunzel Hair: Momo and Mitsugu both have hair that goes down to their waists.
- Rescue Romance: Mika has sex with Daisuke in the shower to thank him for saving her from the rape-plant-monster.
- Rose-Haired Sweetie: The pink-haired Nao is very cheery and friendly.
- Sex Comedy: The sex and seduction scenes are mostly played for laughs. Even the rape-plant-monster.
- Shy Blue-Haired Girl: The blue-haired Maya is quite nervous about confessing her feelings for Daisuke.
- Tan Lines: Mika has these, most noticeable around her bikini top and quite noticeable when she gets fully nude.
- Three-Way Sex: And four-way sex. All the way up to seven-way by the end.
- World Of Buxom: All the girls (besides Maya) have lusciously large breasts.
- You Gotta Have Blue Hair: Nao has pink hair, and Maya has blue hair.
- Zettai Ryouiki: Momo wears this as part of her waitress uniform.