Five letter word - change only one letter

Spare

Spree

Spare - Sperm

Sperm - spear

Spear - Tears

Tears - teats

teats - state

State - beast

Beast - yeast

Yeast - esbat

Esbat - beets

beets - beret

Beret - trees

trees - reset

Reset > Store

store - roast

Roast - Strop

Strop - astro

astro - storm

Storm - Strum

Strum - drums

If a word doesn't appear in the dictionary as a stand-alone word (drumS) should it be acceptable here? Most anything can be pluralized.

drums - smurf

Smurf

Frump

Frump - femur

femur - demur

Demur

Dream

Dream - Adore

Adore - redox

Redox - Boxer

Boxer - borax

Borax - Qobar