[INEFFA SYSTEM] Loading the BannerHistory guide.
BannerHistory

INEFFA
“Allow Ineffa to introduce BannerHistory. This site keeps a record of banners so they are not forgotten once they end. If you are waiting for a character to return, Ineffa will read the records with you.”
What it records
When a limited character's banner ends, the in-game notice disappears with it. BannerHistory keeps that timeline, so you can see when a character last appeared, how long players have waited, and how many times the character has returned — by version and by banner.
It covers eight games: Genshin Impact, Honkai: Star Rail, Zenless Zone Zero, Wuthering Waves, Goddess of Victory: NIKKE, Epic Seven, Brown Dust 2 and Love and Deepspace. Each game gets as many pages as its records support, so the set differs a little from game to game; Genshin Impact has the widest coverage.
How Ineffa suggests reading it
If this is your first visit, start with a rerun chart. Each row is a character and each column is a version. A filled cell is a banner, and the number inside is how many versions have passed since the previous one.
To answer "when will my favourite come back?", the ranking boards are fastest. The rerun ranking counts banners, the drought ranking sorts by time waited since the last banner, and banner density divides the count by time since release so older and newer characters can be compared fairly.
Whether a character can still be obtained after the limited banner ends is covered on the acquisition pages, split into the standard pool, shops, selectors, limited-only and collaborations. Current and upcoming banners for every game are gathered on one combined schedule.
How the records are made
Banner line-ups and dates are checked first against notices and update announcements on each publisher's official site. Statistics such as counts and gaps include only banners that actually started; scheduled, unannounced or predicted dates are shown but left out of the totals.
Predicted dates from the "banner formula", calculated from version cycles, are always marked separately from official announcements. Ineffa considers keeping guesses and facts apart to be this site's best quality.
Handy features
The Image button at the top right of a chart opens the whole table as a single PNG you can post to a community, and the share button copies a link to the view you are looking at. There is no sign-up, and the site is available in Korean, English, Japanese and Simplified and Traditional Chinese.
📋 Ineffa's update log
Taken from BannerHistory's Research history page. The full record, by game and by date, is at the link below.
Birthday pages opened for Genshin Impact and Zenless Zone Zero, gathering the official birthday posts (731 and 84) by character and on a calendar.
The start of the Honkai: Star Rail 4.6 second half (Chun-ya, Blade rerun) corrected to 21 Oct 12:00 server time (UTC+8).
The NIKKE 4th-anniversary livestream set to 24 Oct 09:30 UTC, with Korean and English stream links.
Brown Dust 2's Nekyndalia costume (Unraveling Mummy) and Love and Deepspace's Xavier birthday pool added.
All rerun-chart share images re-captured to match the view you see when a page first opens.
Genshin Impact 7.1 phase 2 wishes (13 Oct – 3 Nov) for Skirk and Escoffier: dates, notice links and banner art.
Genshin, Star Rail and ZZZ banner schedules now show the next special livestream's time and YouTube link.
Zenless Zone Zero 3.3 banners from the special program added: Phoenix and Velina, then Severian and Norma.
Epic Seven's new limited hero Mei Lin and her limited summon (8 – 29 Oct) added.
Counts and gaps in every game now include only banners that actually started; scheduled banners still appear in the tables.
Officially announced characters are listed even without a date, with notes on released, confirmed, unscheduled and pending status.