Rainbow Sea is a multi-ending pixel-art visual novel based on the Japanese myth of the Seven Lucky Gods.

It depicts a year in the life of a Human who was chosen as a candidate to become a god, living among the Seven Lucky Gods, who do not seem to open up much to her.

You—as the Human—can explore the treasure ship and make choices to change the storyline.

All twenty-two endings are true endings, and only you, the player, will be able to find what the real story hidden behind all of them is.

• Move around the treasure ship, setting off triggers by talking to the gods and examining objects on the ship.

• Events are triggered when certain conditions are met, such as the level of affection from the gods, the weather, and the time of day. In the events, you can make choices to change the story.

• Every real-life second counts as a minute in game, where you can be active from 6:00 AM to midnight. Note that if you are not eating or sleeping enough, you will fall asleep sooner than that.

• After one year, on New Year's Day, you will reach an ending, chosen depending on the events you have seen and your choices.

• It takes roughly two hours to complete a playthrough.

You wake up in an unfamiliar storeroom where you can hear nothing but the sound of waves.

As you are trying to figure out why you are here, your reflection in a mirror speaks to you.

The reflection tells you to lie, then disappears.

When you leave the storeroom, you meet people who call themselves the Seven Lucky Gods.

According to one of them, Daikoku, you are a Human who was chosen to become a god.

Most of them do not seem to welcome your sudden arrival.

Once the treasure ship returns to the human world in a year, will you become a god and join the others on the ship? Will you return to your original world as a human? Or will you...?

Your bittersweet year with the Seven Lucky Gods begins.

He is good at and likes cooking. He spends most of his time in the kitchen beside the cafeteria, where the other gods gather for meals.

He plays a central role on the treasure ship due to his reputation as a trustworthy god.

He cares about you and the other gods. 

He wants everyone to get along.

On sunny days, he can be found fishing on the deck.

He doesn't seem to want to interact with humans or other gods, and treats you with annoyance and coldness.

She is a multi-talented goddess who loves all things aquatic, musical, and academic.

She lives freely in the cockpit, without the interference of other gods.

According to her, there's almost nothing she can't do, and she's particularly observant.

The deity of war. He is usually quiet and calm, but when it comes to battle, he is by far the strongest out of all eight million gods.

He is not good at lying or detecting lies, and doesn't understand why other people lie.

He loves cats, but is troubled by how they tend to run away from him because of his large body and armor.

He speaks a unique dialect.

Thanks to his ability to predict the future, he has an enlightened view of things.

Thinks ill of others similar to him, but is also uncomfortable with those he sees as pure.

He is particular about tea and incense.

He wears a fox mask, but he won't tell you why.

He is cheerful and acts like a child, but like the other gods, he seems to be much older than you.

He is in charge of writing down the lives and fates of humans.

He is very interested in modern technology.

He takes walks all over the treasure ship.

He spends most of his time in the archives and knows almost all of the books there.

His face looks young, but his behavior and language give him an air of maturity.

He has a warm personality and is always ready to help anyone.