塚本家 | Tsukamoto Bloodline #257449317

members (measured 17 Oct 2026, 20:31 UTC)

11 October 2025

created (per Roblox API)

12 August 2026

first measured by this register

OtherJAdisbandedjp-culturesmall-group

Description

Disbanded

Written by the group; not a statement by this register.

Membership history

Growth

2 measurements spanning 39 days, net -1. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 10–11 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
15 Oct 2026, 18:15	10	-1
6 Sept 2026, 12:52	11	first reading

Ownership

Owned by @TsuchiuraIbaraki as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

@TsuchiuraIbaraki — Patriarch | 家長 (rank 255) terminated

AriHirano (@cloudydreamersz) — Older Sibling | 兄姉 (rank 3)

Thaddeus_Noctis (@Zerath322) — Family Friends | 家族 (rank 2)

Athena (@laqna91) — Family Friends | 家族 (rank 2)

Pie (@QuynhHimairi) — 女王- QUEEN (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Patriarch | 家長1

Heir | 相統人0

Senior Advisor | 上級顧問0

Advisor | 顧問0

Older Sibling | 兄姉2

Family Friends | 家族6

Sibling l 兄弟1

Member11

女王- QUEEN1

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.