# 667-tsuu no Love Letter
*Also known as: 667通のラブレター*

## Facts
- Format: ONA
- Status: concluded
- Year: 2023

## Renewal Score
Courcast is tracking renewal signals for 667-tsuu no Love Letter. Score not yet available.

## Synopsis
The story starts with how Touma and Yui met, and as time went on, seemingly are pining over each other through love letters after they're forced to part ways. Near the end of the advertisement, however, it's revealed that every line of dialogue actually comes from letters written by the public after Morinaga first announced it was discontinuing Lipton Milk Tea back in March 2022. 
The advertisement is directed by Toshitaka Shinoda made for Morinaga Milk Industry, advertising the return of Lipton

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0-100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/667-tsuu-no-love-letter-2023
- API: https://courcast.com/api/public/titles/667-tsuu-no-love-letter-2023
- About Courcast: https://courcast.com/about

*Last updated: 2026-08-18*