Hello, this is Black Survival.
On April 16th, there will be regular server maintenance. The client requires a manual update to reflect the changes. The details of the patch are as the following:

7.6.00 / 7.6.01 Update (20.04.16)
1. Lobby
1.1. Tech Lab Update
The 12th Mystery PC lineup ‘Aglaia’s Supply’ has released. This Tech Lab will focus on new skin and avatars, emoticons, and background theme. For more in-depth details, players may check on [Preview] announcements.
Newly Added Skins - Highschool Mai (Live2D Animated Skin)
New added Avatars - Zahir Avatar - Chiara Avatar
New added Emoticons - Aya Emoticons - Shoichi Emoticons
New Theme - Post Office (Seoul map)
Re-release of Products - Teacher Bernice (Live2D) / Highschool Sissela (Live2D) / Highschool Camilo / Classroom (Theme) - Pro Gamer JP Live2D / Couch Potato Leon Live2D / Torero Camilo Live2D
(**All the new products above will be available for purchase from April 16th, 2020 after maintenance until April 29th, 2020. Visit Mystery PC/Mileage Shop to obtain this Tech Lab products.*)
1.2. Aglaia’s Pass Episode 4 Release
The Episode in Aglaia’s Pass unravels various kinds of stories that are going on with specific Test Subjects during the experimentation. Players are able to progress with the story by meeting certain conditions and earn rewards upon completion.
Aglaia’s Pass Episode 4 ‘Mediocre Ending’ Released
Rewards - Episode story - Episode character skins (exclusives to Restricted Approval / Top Confidential Approval) - Lumia’s Rocker Hart - Combat Stance Li Dailin - Fresh Start Yuki - Episode BG - Love & Peace (BGM Lobby)
*There will be slight differences in the Live2D animation compared to the community post animation that was announced
1.3. Research Results Adjustments
Ultra-vibration - High-frequency Vibration - Additional damage when attacking Wild Animal : 4 → 8
Environmental Variable - Ultrasonic Detecting - Chances to discover 2 items when searching near sources of water : +8% → +10% - Ground-penetrating Pulse - Chances to discover 2 items when searching in mountain terrains/rugged area : +8% → +10%
2. Combat
2.1. Jackie
Hide & Seek (both Classic and Team) - Duration time for Seeker/Toy : 12 secs → 15 secs
2.2. Zahir
Eye of Azrael (Classic) - Cooldown time : 120 secs → 90 secs
Eye of Azrael (Team) - Cooldown time : 120 secs → 20 secs
2.3. Hyejin
Omen (both Classic and Team) - Cooldown time : 100 secs → 80 secs
2.4. Magnus
Tough Body (both Classic and Team) - Permanent armor receive : 3 → 5
2.5. Jan
Stats - Hand Mastery : D → D+ - Lv1 Atk : 18 → 16
2.6. Item Adjustments
Thrown
Dart of Blood - Atk dmg : 200 → 170
Dart of Souls - Grade : Legendary → Epic
High Explosive Grenade - Atk dmg : 48 → 46
Enhanced Boomerang - Atk dmg : 39 → 37
Heated Whetstone - Item Type : Weapon (Thrown) → Normal (Ingredient) - Maximum overlap quantity : 80 → 6
Heated Oil - Item Type : Weapon (Thrown) → Normal (Ingredient) - Maximum overlap quantity : 80→ 6
Bow
Ballista - Atk dmg : 48 → 47
Twinbow - Atk dmg : 48 → 47
Clothes
Amazoness Armor - Craft Method : Sheet Metal Armor + Bikini → Chain Armor + Bikini
Sheet Metal Armor - Armor : 40 → 35
3. Bugfixes
Fixed an issue where the promotion package purchases for the previous season were exposed as if they were available for purchase during the pre-season (actual purchases are not allowed).