Monsterling Research Deep Dive Event guide for Mongil: Star Dive. This includes event duration, rewards, required Monsterlings, Combining Monsterlings, Monsterling mutation recipe.
Table of Contents
Monsterling Research Deep Dive Event Overview
Event Details

| Duration | April 22, 2026 12:00 AM – May 5, 2026 11:59 PM (UTC) |
| Rewards | ![]() ![]() ![]() ![]() |
Collect the required Monsterlings and give then to Hilia in exchange for rewards! This will involve not only capturing them, but also combining them to get the right mutations.
How to Get Required Monsterlings
Need to Combine Monsterlings
| Monsterling | Mutation Recipe | ||
Orange Cappy | Green Cappy | + | Cappy |
Teal Cappy | Brown Cappy | + | Cpl. Goblin |
Cappyberry | Cappy | + | Spark Slime |
Leafy Mama | Cappy Mama | + | Teal Cappy |
Green Cappy Bro | Uncle Cappy | + | Cappyberry |
Above are the required Monsterlings as well as the mutation recipes you need to get them. Both the Leafy Mama & Cappy Bro will require Mutations as materials as well.
Combining Guide - Best Mutations & Monsterling
Chance to Get in Dimenstional Rift
All monsters except Green Cappy Bro can appear in the Dimentional Rift. However, sincetheir appearance is random, it is not recommended to farm for them there. If you do get them, deliver them to Hilia.
Locations of Other Monsterlings
| Monsterling | Location |
Cappy | - Ventus Forest - Natura Monastery - Mt. Aurum Entrance - Mt. Aurum Midpoint |
Cappy Mama | - Ventus Forest - Can be spawned via Requests |
Brown Cappy | - Ventus Forest - Mt. Proelium Entrance - Mt. Aurum Entrance - Delica Plain Entrance |
Uncle Cappy | - Ventus Forest - Can be spawned via Requests |
Green Cappy | - Ventus Forest - Mt. Proelium Entrance - Mt. Aurum Midpoint |
Green Cappy Papa | - Path to Breezeville - Can be spawned via Requests |
Locate the required Monsterlings and the recipe ingredients. Boss monsters do not respawn until the next server reset, but can be spawned using Requests.
How to Complete Monsterling Research Deep Dive
- Talk to Hilia
- Check the Monsterling Delivery List
- Select the Monsterling to Deliver
- Receive Rewards
Talk to Hilia

First, talk to Hilia in the Monster Tamers Gathering Hub [Python].
Check the Monsterling Delivery List

You can then see the Delivery List with all of the required Monsterlings, as well as how many of them you need to give.
Select the Monsterling to Deliver

Select the Monsterling to give up on the Delivery List. Note that you can give the Monsterlings in whichever order you want!
Receive Rewards

Once you deliver them, you can receive the rewards. Rewards for overall points are claimed separately.
Monsterling Research Deep Dive Research
Get Rewards Depending on Points
| Total Delivery Points | Rewards |
| 5 | Cord of Fate ×1 |
| 10 | Starlight Crystal ×50 |
| 15 | Cord of Fate ×2 |
| 30 | Compass of Promise ×1 |
| 45 | Cord of Fate ×3 |
| 60 | Starlight Crystal ×75 |
| 80 | Compass of Memory ×1 |
| 100 | Compass of Promise ×2 |
Rewards will be based on the total number of Delivery Points you have accumulated. To obtain all of the rewards, you need to deliver all of the lister Monsterlings.
Obtain Growth Chow as Reward

Each time you give a Monsterling, you will be rewards with Growth Chows of different rarities. Both the Leafy Mama and the Green Cappy Bro will reward Superior Growth Chow!
Esther
Fighter
Destroyer
Support
Assassin
Fire
Ice
Wind
Earth
Lightning