My SEKAI is an open world game mode that allows the players to explore their own SEKAI. Materials in the SEKAI can be collected to craft furniture and decorate the area, as well as be forged into other materials. The game mode was released for the Version 5.0.0 update (10th January, 2025, Japanese server).
In-game characters can visit the player's SEKAI via a gate, and have conversations with the player. Through Strolling, the player can also visit other friends' SEKAI, and can interact with other users via chat, emotes and stickers, similar to virtual lives.
Materials[]
See also: My SEKAI/Materials
Materials can be obtained through mining rocks, picking flowers, or finding treasure chests.
Materials can be used to help craft furniture, as well as be forged into other items such as magic cloth, music cards, and practice scores via the Transformation Machine.
Stamina[]
Stamina is required to obtain materials, which can be recovered over time, using bonus energy drinks, and/or with crystals. The player can naturally recover and use 10 blocks of stamina.
1 Bonus Energy Drink (S) recovers 1 block of stamina- 1 Bonus Energy Drink (L) recovers 10 blocks of stamina
- 10 Crystals recovers 1 block of stamina
Excess stamina can also be recovered and stored via bonus energy drinks and crystals.
Furniture[]
See also: My SEKAI/Crafting
Furniture can be crafted using both materials and its corresponding blueprint to decorate the player's SEKAI. Blueprints can be obtained through finding treasure chests around the SEKAI. Characters can also interact with furniture.
Some furniture also provide special functions or utilities.
- The music player is obtainable through the tutorial, allowing players to choose what music to play in the background.
- The PC is obtainable through clearing missions, and helps players access the "Secret Shop" that sells blueprints.
- The Transformation Machine is obtainable from clearing missions, and allows items to be transformed into other items.
- Displays are obtainable from clearing missions, and allows the player to showcase collectibles, penlights, titles, music covers, and photos in their SEKAI.
- The canvas is obtained from clearing missions and is crafted using memoria. Crafting a character's canvas will grant additional performance points for them. Multiple canvases can be crafted for one character, but the bonus points are only applied once.
- Plushies of characters can be crafted using memoria, and will give additional performance points depending on the size of the plushie (small, medium, large).
A Model Room feature provides pre-modeled rooms for players for furniture decoration.
Players can obtain blueprints of furnitures they do not own through Strolling and visiting another user's SEKAI. Using a Blank Blueprint, players can Sketch another user's furniture.
Gate[]
There are different gates that will allow different units to visit the SEKAI. Only 2-5 random characters will visit the SEKAI at a time. The gate can be changed once every 24 hours.
The gates can be levelled up, increasing the number of characters that will visit the SEKAI, and improving the corresponding unit's performance score. Memoria can be used to level up the gate, which is obtained from interacting with characters in the SEKAI.
| Level | Resources | Stats |
|---|---|---|
| 1 | Chance of two visitors: 58% Chance of three visitors: 30% Chance of four visitors: 11% Chance of five visitors: 1% Unit performance bonus: +0.1% | |
| 2 |  Wood of Feelings (x5)  Stones of Feelings (x5)  Clay (x1)  Flower Petal (x1)  Screw (x1)
|
Chance of two visitors: 56% Chance of three visitors: 30% Chance of four visitors: 12% Chance of five visitors: 2% Unit performance bonus: +0.2% |
| 3 |  Memoria (x2) for each SEKAI member in the unit. Stones of Feelings (x25)
|
Chance of two visitors: 54% Chance of three visitors: 30% Chance of four visitors: 13% Chance of five visitors: 3% Unit performance bonus: +0.3% |
| 4 | Wood of Feelings (x20)  Stones of Feelings (x10)  Softwood (x10)  Silky Linen (x10)  Fluffy Cotton (x10)
|
Chance of two visitors: 52% Chance of three visitors: 30% Chance of four visitors: 14% Chance of five visitors: 4% Unit performance bonus: +0.4% |
| 5 | Memoria (x2) for each VS member in the unit. Stones of Feelings (x50) Clay (x7)  Copper (x7)  Iron (x7)
|
Chance of two visitors: 50% Chance of three visitors: 30% Chance of four visitors: 15% Chance of five visitors: 5% Unit performance bonus: +0.5% |
| 6 | Wood of Feelings (x25) Stones of Feelings (x50)  Sticky Sap (x7)  Shiny Glass (x7)  Sparkly Quartz (x7)
|
Chance of two visitors: 48% Chance of three visitors: 30% Chance of four visitors: 16% Chance of five visitors: 6% Unit performance bonus: +0.6% |
| 7 | Memoria (x3) for each SEKAI member in the unit. Wood of Feelings (x50)
|
Missions[]
See also: My SEKAI/Missions
Clearing missions can grant My SEKAI EXP, special furniture, crystals, avatar costumes, and character costumes.
My SEKAI Rank[]
My SEKAI EXP can be gained from crafting furniture and completing missions. By increasing the rank, more area will become available, room and garden size will increase, more rooms will become available, and more furniture can be placed in the SEKAI.
| Rank number | EXP required | Rewards |
|---|---|---|
| 1 | Room size increase Garden size increase Harvesting Area size increase Number of placeable furniture increase | |
| 2 | 48,000 | Harvesting Area size increase (Colorful Flower Fields area unlocked) |
| 3 | 120,000+ | Room size increase Number of placeable furniture increase |
| 4 | Harvesting Area size increase | |
| 5 | Harvesting Area size increase | |
| 6 | Room size increase Number of placeable furniture increase | |
| 7 | Garden size increase Number of placeable furniture increase | |
| 8 | 部屋の解放 Number of placeable furniture increase | |
| 9 | Garden size increase Number of placeable furniture increase | |
| 10 | 部屋の解放 Number of placeable furniture increase |
Paid passes[]
Paid mission passes are available to purchase for increased benefits and additional items.
World Pass[]
The World Pass allows specific characters to be invited to the SEKAI, increases the capacities of stamina, the Transformation Machine and Secret Shop, increases the number of savable room layouts, and gives 1380 paid crystals upon purchase. The pass lasts for 30 days.
My SEKAI Mission Pass[]
If both the My SEKAI Mission Pass and the Premium Mission Pass are purchased, there is a 25% discount for the second pass.
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